Everest | 1989 N Col-NE Ridge

A USA expedition to Everest in 1989 via N Col-NE Ridge, led by Michael Dunn. Summit reached on 24th October 1989. 18 members recorded.

Expedition Details

Field	Value
ID	389
Imported	2026-03-06 18:04:49.359634
Expedition ID	EVER89307
Peak ID	EVER
Year	1989
Season	3
Host Country	2
Route 1	N Col-NE Ridge
Route 2	-
Route 3	-
Route 4	-
Nationality	USA
Leaders	Michael Dunn
Sponsor	American Goodwill Everest Expedition
Success 1	False
Success 2	False
Success 3	False
Success 4	False
Ascent 1	-
Ascent 2	-
Ascent 3	-
Ascent 4	-
Claimed	False
Disputed	False
Countries	Australia, Mexico
Approach	-
Basecamp Date	1989-08-23
Summit Date	1989-10-24
Summit Time	-
Summit Days	62
Total Days	67
Termination Date	1989-10-29
Termination Reason	4
Termination Notes	Abandoned at 8600m due to wind and cold
High Point (m)	8600
Traverse	False
Ski	False
Paraglide	False
Camps	3
Fixed Rope (m)	0
Total Members	17
Summit Members	0
Member Deaths	0
Total Hired	2
Summit Hired	0
Hired Deaths	0
No Hired	False
O2 Used	True
O2 None	False
O2 Climb	True
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Taken	False
O2 Unknown	False
Other Summits	-
Campsites	BC(23/08,5176n),C3.ABC(03/09,6550m),C4(24/09,7000m),C5(21/10,7800m),C6(23/10,8300m),xxx(24/10,8600m)
Route Notes	C4 at North Col High point at 2nd Step. Did carries to Col camp for long time bafore establishing camp: were stocking supplies there. 1st time C5 was slept in was 21 Oct because winds: 100 mph gusts (60 mph sustained). 21 Oct was summit attack by Tejas and Litherland, on 22nd biv at 8200m after late start without tent trying to reach C6, where Spanish summer team's tents were. 23rd reached Spanish tent which was usable and that was last calm day with winds starting at 3:00 am on 24th. Got to 8600m at foot of 2nd Step, got frostbitten in cold wind and turned down 24th. Horner and Ongden Sherpa to C5, 25th down in screaming wind. 26th abandoned N Col camp, 28th cleared ABC and left BC 29th Oct.
Accidents	Rabold stroke (?) and Slade CO2 in tent; Litherland fell 20m but not hurt
Achievement	-
Agency	White Magic
Commercial Route	True
Standard Route	True
Primary Route	False
Primary Member	False
Primary Reference	-
Primary ID	-
Checksum	2449948
Year	1989
Summit Success	False
O2 Summary	Used
Route (lowercase)	n col-ne ridge

Members

Field	Value
ID	10347
Imported	2026-03-06 18:06:05.675609
Expedition ID	EVER89307
Member ID	02
Peak ID	EVER
Year	1989
Season	3
First Name	Charles M. (Chuck)
Last Name	Armatys
Sex	M
Age	0
Birth Date	-
Year of Birth	1951
Calculated Age	38
Citizenship	USA
Status	Climber
Residence	Black Forest, Colorado
Occupation	Product manager
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	False
Personal High Point (m)	0
Summit Date 1	-
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	0
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	1
Summit Term	3
HCN	0
Checksum	2431678
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	charles m. (chuck) armatys
Year of Birth	1951
Year	1989
Age at Expedition	38
Role	Member

Field	Value
ID	10348
Imported	2026-03-06 18:06:05.675609
Expedition ID	EVER89307
Member ID	03
Peak ID	EVER
Year	1989
Season	3
First Name	Randy Todd
Last Name	Burleson
Sex	M
Age	0
Birth Date	-
Year of Birth	1960
Calculated Age	29
Citizenship	USA
Status	Climber
Residence	Reno, Nevada
Occupation	Alpine guide
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	False
Personal High Point (m)	0
Summit Date 1	-
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	0
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	1
Summit Term	3
HCN	0
Checksum	2434890
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	randy todd burleson
Year of Birth	1960
Year	1989
Age at Expedition	29
Role	Member

Field	Value
ID	10349
Imported	2026-03-06 18:06:05.675609
Expedition ID	EVER89307
Member ID	01
Peak ID	EVER
Year	1989
Season	3
First Name	Michael
Last Name	Dunn
Sex	M
Age	0
Birth Date	-
Year of Birth	-
Calculated Age	40
Citizenship	USA
Status	Leader
Residence	Carson City, Nevada
Occupation	Organizer of outdoor adventure trips
Leader	True
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	False
Personal High Point (m)	0
Summit Date 1	-
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	0
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	1
Summit Term	3
HCN	0
Checksum	-145
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	michael dunn
Year of Birth	-
Year	1989
Age at Expedition	-
Role	Leader

Field	Value
ID	10350
Imported	2026-03-06 18:06:05.675609
Expedition ID	EVER89307
Member ID	04
Peak ID	EVER
Year	1989
Season	3
First Name	Christopher
Last Name	Haver
Sex	M
Age	0
Birth Date	-
Year of Birth	1966
Calculated Age	23
Citizenship	USA
Status	Climber
Residence	Phoenix, Arizona
Occupation	Student of finance
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	False
Personal High Point (m)	0
Summit Date 1	-
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	0
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	1
Summit Term	3
HCN	0
Checksum	2437168
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	christopher haver
Year of Birth	1966
Year	1989
Age at Expedition	23
Role	Member

Field	Value
ID	10351
Imported	2026-03-06 18:06:05.675609
Expedition ID	EVER89307
Member ID	05
Peak ID	EVER
Year	1989
Season	3
First Name	Skip
Last Name	Horner
Sex	M
Age	0
Birth Date	-
Year of Birth	1947
Calculated Age	41
Citizenship	USA
Status	Climber
Residence	Folsom, California
Occupation	Alpine guide
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	False
Personal High Point (m)	7800
Summit Date 1	-
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	0
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	2
Summit Term	3
HCN	0
Checksum	2430365
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	skip horner
Year of Birth	1947
Year	1989
Age at Expedition	42
Role	Member

Field	Value
ID	10352
Imported	2026-03-06 18:06:05.675609
Expedition ID	EVER89307
Member ID	06
Peak ID	EVER
Year	1989
Season	3
First Name	Aaron
Last Name	Kahan
Sex	M
Age	0
Birth Date	-
Year of Birth	1948
Calculated Age	41
Citizenship	USA
Status	Climber
Residence	Tulsa, Oklahoma
Occupation	Oil and gas exploration company employee
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	False
Personal High Point (m)	0
Summit Date 1	-
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	0
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	1
Summit Term	3
HCN	0
Checksum	2430463
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	aaron kahan
Year of Birth	1948
Year	1989
Age at Expedition	41
Role	Member

Field	Value
ID	10353
Imported	2026-03-06 18:06:05.675609
Expedition ID	EVER89307
Member ID	07
Peak ID	EVER
Year	1989
Season	3
First Name	Ellen V. B.
Last Name	Lapham
Sex	F
Age	0
Birth Date	-
Year of Birth	1943
Calculated Age	46
Citizenship	USA
Status	Climber
Residence	Woodside, California
Occupation	High technology business
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	False
Personal High Point (m)	0
Summit Date 1	-
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	0
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	1
Summit Term	3
HCN	0
Checksum	2428835
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	ellen v. b. lapham
Year of Birth	1943
Year	1989
Age at Expedition	46
Role	Member

Field	Value
ID	10354
Imported	2026-03-06 18:06:05.675609
Expedition ID	EVER89307
Member ID	08
Peak ID	EVER
Year	1989
Season	3
First Name	Mary E. (Dolly)
Last Name	Lefever
Sex	F
Age	0
Birth Date	-
Year of Birth	1946
Calculated Age	43
Citizenship	USA
Status	Climber
Residence	Palmer, Alaska
Occupation	Nurse & alpine guide
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	False
Personal High Point (m)	0
Summit Date 1	-
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	0
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	1
Summit Term	3
HCN	0
Checksum	2429839
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	mary e. (dolly) lefever
Year of Birth	1946
Year	1989
Age at Expedition	43
Role	Member

Field	Value
ID	10355
Imported	2026-03-06 18:06:05.675609
Expedition ID	EVER89307
Member ID	09
Peak ID	EVER
Year	1989
Season	3
First Name	Kenneth
Last Name	Litherland
Sex	M
Age	0
Birth Date	-
Year of Birth	1963
Calculated Age	26
Citizenship	USA
Status	Climber
Residence	Vegas, New Mexico
Occupation	Student
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	8600
Summit Date 1	1989-10-24
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	True
O2 None	False
O2 Climb	True
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	4
Summit Term	3
HCN	0
Checksum	2436102
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	kenneth litherland
Year of Birth	1963
Year	1989
Age at Expedition	26
Role	Member

Field	Value
ID	10356
Imported	2026-03-06 18:06:05.675609
Expedition ID	EVER89307
Member ID	10
Peak ID	EVER
Year	1989
Season	3
First Name	Michael
Last Name	McDowell
Sex	M
Age	0
Birth Date	-
Year of Birth	1947
Calculated Age	41
Citizenship	Australia
Status	Climber
Residence	New York, New York
Occupation	Alpine guide
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	False
Personal High Point (m)	0
Summit Date 1	-
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	0
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	1
Summit Term	3
HCN	0
Checksum	2430444
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	michael mcdowell
Year of Birth	1947
Year	1989
Age at Expedition	42
Role	Member

Field	Value
ID	10357
Imported	2026-03-06 18:06:05.675609
Expedition ID	EVER89307
Member ID	11
Peak ID	EVER
Year	1989
Season	3
First Name	Mark R.
Last Name	Rabold
Sex	M
Age	0
Birth Date	-
Year of Birth	1956
Calculated Age	33
Citizenship	USA
Status	Exp Doctor
Residence	Tacoma, Washington
Occupation	Physician
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	False
Personal High Point (m)	0
Summit Date 1	-
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	0
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	1
Summit Term	9
HCN	0
Checksum	2433590
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	mark r. rabold
Year of Birth	1956
Year	1989
Age at Expedition	33
Role	Member

Field	Value
ID	10358
Imported	2026-03-06 18:06:05.675609
Expedition ID	EVER89307
Member ID	12
Peak ID	EVER
Year	1989
Season	3
First Name	Oscar
Last Name	Rodriguez
Sex	M
Age	0
Birth Date	-
Year of Birth	1958
Calculated Age	31
Citizenship	Mexico
Status	Climber
Residence	Santa Fe, New Mexico
Occupation	Physician & alpinist
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	False
Personal High Point (m)	0
Summit Date 1	-
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	0
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	1
Summit Term	3
HCN	0
Checksum	2434107
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	oscar rodriguez
Year of Birth	1958
Year	1989
Age at Expedition	31
Role	Member

Field	Value
ID	10359
Imported	2026-03-06 18:06:05.675609
Expedition ID	EVER89307
Member ID	13
Peak ID	EVER
Year	1989
Season	3
First Name	Michael A. (Mike)
Last Name	Roth
Sex	M
Age	0
Birth Date	-
Year of Birth	1952
Calculated Age	36
Citizenship	USA
Status	Climber
Residence	Allentown, Pennsylvania
Occupation	-
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	False
Personal High Point (m)	0
Summit Date 1	-
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	0
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	1
Summit Term	3
HCN	0
Checksum	2432188
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	michael a. (mike) roth
Year of Birth	1952
Year	1989
Age at Expedition	37
Role	Member

Field	Value
ID	10360
Imported	2026-03-06 18:06:05.675609
Expedition ID	EVER89307
Member ID	14
Peak ID	EVER
Year	1989
Season	3
First Name	Michael C.
Last Name	Sinclair
Sex	M
Age	0
Birth Date	-
Year of Birth	1940
Calculated Age	48
Citizenship	USA
Status	Climber
Residence	Orefield, Pennsylvania
Occupation	Cardio-thoracic surgeon
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	False
Personal High Point (m)	0
Summit Date 1	-
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	0
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	1
Summit Term	3
HCN	0
Checksum	2427860
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	michael c. sinclair
Year of Birth	1940
Year	1989
Age at Expedition	49
Role	Member

Field	Value
ID	10361
Imported	2026-03-06 18:06:05.675609
Expedition ID	EVER89307
Member ID	15
Peak ID	EVER
Year	1989
Season	3
First Name	Jim
Last Name	Slade
Sex	M
Age	0
Birth Date	-
Year of Birth	1948
Calculated Age	41
Citizenship	USA
Status	Climber
Residence	Oakland, California
Occupation	River guide
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	False
Personal High Point (m)	0
Summit Date 1	-
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	0
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	1
Summit Term	3
HCN	0
Checksum	2430478
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	jim slade
Year of Birth	1948
Year	1989
Age at Expedition	41
Role	Member

Field	Value
ID	10362
Imported	2026-03-06 18:06:05.675609
Expedition ID	EVER89307
Member ID	16
Peak ID	EVER
Year	1989
Season	3
First Name	Bill
Last Name	Swanson
Sex	M
Age	0
Birth Date	-
Year of Birth	1948
Calculated Age	40
Citizenship	USA
Status	BC Manager
Residence	Carson City, Nevada
Occupation	Bartender
Leader	False
Deputy	False
Basecamp Only	True
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	False
Personal High Point (m)	0
Summit Date 1	-
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	0
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	1
Summit Term	17
HCN	0
Checksum	2430819
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	bill swanson
Year of Birth	1948
Year	1989
Age at Expedition	41
Role	BC Only

Field	Value
ID	10363
Imported	2026-03-06 18:06:05.675609
Expedition ID	EVER89307
Member ID	17
Peak ID	EVER
Year	1989
Season	3
First Name	Vernon Edward (Vern)
Last Name	Tejas
Sex	M
Age	0
Birth Date	-
Year of Birth	1953
Calculated Age	36
Citizenship	USA
Status	Climber
Residence	Anchorage, Alaska
Occupation	Alpine guide
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	8600
Summit Date 1	1989-10-24
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	True
O2 None	False
O2 Climb	True
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	4
Summit Term	3
HCN	0
Checksum	2432355
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	vernon edward (vern) tejas
Year of Birth	1953
Year	1989
Age at Expedition	36
Role	Member

Field	Value
ID	49110
Imported	2026-03-06 18:06:05.675609
Expedition ID	EVER89307
Member ID	18
Peak ID	EVER
Year	1989
Season	3
First Name	Ongden
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	-
Calculated Age	0
Citizenship	Nepal
Status	H-A Worker
Residence	-
Occupation	-
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	True
Sherpa	True
Tibetan	False
Summit Success	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	False
High Point (m)	False
Personal High Point (m)	7800
Summit Date 1	-
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	0
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	2
Summit Term	3
HCN	0
Checksum	-145
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	ongden sherpa
Year of Birth	-
Year	1989
Age at Expedition	-
Role	Hired

18 recorded members.

Name	Sex	Year of Birth	Citizenship	Status	Residence	Occupation
Charles M. (Chuck) Armatys	M	1951	USA	Climber	Black Forest, Colorado	Product manager	Details Other expeditions
Randy Todd Burleson	M	1960	USA	Climber	Reno, Nevada	Alpine guide	Details Other expeditions
Michael Dunn	M	-	USA	Leader	Carson City, Nevada	Organizer of outdoor adventure trips	Details Other expeditions
Christopher Haver	M	1966	USA	Climber	Phoenix, Arizona	Student of finance	Details Other expeditions
Skip Horner	M	1947	USA	Climber	Folsom, California	Alpine guide	Details Other expeditions
Aaron Kahan	M	1948	USA	Climber	Tulsa, Oklahoma	Oil and gas exploration company employee	Details Other expeditions
Ellen V. B. Lapham	F	1943	USA	Climber	Woodside, California	High technology business	Details Other expeditions
Mary E. (Dolly) Lefever	F	1946	USA	Climber	Palmer, Alaska	Nurse & alpine guide	Details Other expeditions
Kenneth Litherland	M	1963	USA	Climber	Vegas, New Mexico	Student	Details Other expeditions
Michael McDowell	M	1947	Australia	Climber	New York, New York	Alpine guide	Details Other expeditions
Mark R. Rabold	M	1956	USA	Exp Doctor	Tacoma, Washington	Physician	Details Other expeditions
Oscar Rodriguez	M	1958	Mexico	Climber	Santa Fe, New Mexico	Physician & alpinist	Details Other expeditions
Michael A. (Mike) Roth	M	1952	USA	Climber	Allentown, Pennsylvania	-	Details Other expeditions
Michael C. Sinclair	M	1940	USA	Climber	Orefield, Pennsylvania	Cardio-thoracic surgeon	Details Other expeditions
Jim Slade	M	1948	USA	Climber	Oakland, California	River guide	Details Other expeditions
Bill Swanson	M	1948	USA	BC Manager	Carson City, Nevada	Bartender	Details Other expeditions
Vernon Edward (Vern) Tejas	M	1953	USA	Climber	Anchorage, Alaska	Alpine guide	Details Other expeditions
Ongden Sherpa	M	-	Nepal	H-A Worker	-	-	Details Other expeditions

References

Field	Value
ID	579
Imported	2026-03-06 18:06:36.307770
Expedition ID	EVER89307
Reference ID	01
Year	1989
Type	2
Journal	AAJ
Author	Hawley, Elizabeth
Title	-
Publisher	-
Publication Date	1990
Language	-
Citation	64:303 (1990)
Yak 94	-
Notes	-

Field	Value
ID	11739
Imported	2026-03-06 18:06:36.307770
Expedition ID	EVER89307
Reference ID	02
Year	1989
Type	5
Journal	-
Author	-
Title	http://publications.americanalpineclub.org/articles/12199030301/Asia-Tibet-Everest-Attempts-from-the-North
Publisher	-
Publication Date	-
Language	-
Citation	-
Yak 94	-
Notes	-

2 recorded references.

Expedition ID	Journal	Author	Title	Publisher	Citation	Yak 94
EVER89307	AAJ	Hawley, Elizabeth	-	-	64:303 (1990)	-
EVER89307	-	-	http://publications.americanalpineclub.org/articles/12199030301/Asia-Tibet-Everest-Attempts-from-the-North	-	-	-