Everest | 1990 S Col-SE Ridge

A USA expedition to Everest in 1990 via S Col-SE Ridge, led by Glenn Porzak. Summit reached on 10th May 1990. 13 members recorded.

Expedition Details

Field	Value
ID	629
Imported	2026-03-06 18:04:49.359634
Expedition ID	EVER90107
Peak ID	EVER
Year	1990
Season	1
Host Country	1
Route 1	S Col-SE Ridge
Route 2	-
Route 3	-
Route 4	-
Nationality	USA
Leaders	Glenn Porzak
Sponsor	1990 American Everest-Lhotse Expedition
Success 1	True
Success 2	False
Success 3	False
Success 4	False
Ascent 1	106,108
Ascent 2	-
Ascent 3	-
Ascent 4	-
Claimed	False
Disputed	False
Countries	-
Approach	-
Basecamp Date	1990-04-01
Summit Date	1990-05-10
Summit Time	0715
Summit Days	39
Total Days	47
Termination Date	1990-05-18
Termination Reason	1
Termination Notes	-
High Point (m)	8849
Traverse	False
Ski	False
Paraglide	False
Camps	4
Fixed Rope (m)	0
Total Members	10
Summit Members	6
Member Deaths	0
Total Hired	18
Summit Hired	3
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	Climbed Lhotse (LHOT-901-01)
Campsites	BC(01/04,5350m),C1(06/04,6000m),C2(08/04,6600m),C3(15/04,7150m),C4(27/04,7900m),Smt(10-11/05)
Route Notes	BC at normal site C1 at top of Icefall C2 in Western Cwm C3 on Lhotse Face C4 at South Col (2 big tents). 28th April made 1st summit bid: all who actually succeeded on 10th except Manning & Lhakpa Dorje had reached C4. Porzak only on to go above C4, on 28th got to 8100m & turned back because winds were just bad as at Col and "couldn't see anything." 29th down to BC. 1st May snowed at BC, total storm day - and 5th also. 6th May perfect weather and started up 7th May. 9th May to Col despite very cold and almost turned back at yellow band but no wind; arrived Col at 1:00 pm but clear at 8:00 pm and started up at 11:00 pm in full moonlight, very cold snow deep; took turns leading until at 8500m Athans took lead and took off like madman at 12:30. Steep up to S Summit; avalanche danger at best and felt at any moment might go down Kangschung Face which in shadow; then sun popped up suddenly. Porzak used 1 liter/min part way, 2l/m most of way, 3l/m on summit. Porzak arrived at top about 7:15 am and stayed an hour. Ran out of oxygen in descent at 28,500 ft and arrived at Col in whiteout at 2:00 pm. He was surprised how steep SE Ridge was. Lapkass intended to be in Lhotse team, then changed his mind, shot up to Everest. There were 2 Swedes from NZ expedition and Macartney-Snape at Col and these 4 went to summit together. Left Col 9:30 pm on 10th May and was first on top next morning - "it was a good trip, a good group of guys, great group of Sherpas." 2 Sherpas went to S Col with May 10th summiters who stayed in C4, as per plan so they could help summit party. Wally Berg - 27 May 90 10 minutes after we radioed from summit of Lhotse, the Sherpas were putting on city clothes and taking baths, despite Porzak's telling Sherpas in advance Berg and Fischer were to try Everest summit. Sherpas weren't ready to cooperate after other Everest successes and Lhotse's. Berg and Fischer could have gone for Everest top with Swiss if Berg and Fischer were prepared to go no lower than C2 and join Swiss on 16th to Everest top, but Berg and Fischer needed BC rest first. Fischer especially disappointed at losing chance for Everest summit. Berg also sorry, but have taken some consolation from reports that weather not good after 15th or so.
Accidents	Manning slight frostbite; Browning serious pulmonary edema in descent from top
Achievement	-
Agency	Mountain Travel
Commercial Route	True
Standard Route	True
Primary Route	False
Primary Member	False
Primary Reference	-
Primary ID	-
Checksum	2450192
Year	1990
Summit Success	True
O2 Summary	Used
Route (lowercase)	s col-se ridge

Members

Field	Value
ID	10549
Imported	2026-03-06 18:06:05.675609
Expedition ID	EVER90107
Member ID	02
Peak ID	EVER
Year	1990
Season	1
First Name	Peter George (Pete)
Last Name	Athans
Sex	M
Age	0
Birth Date	-
Year of Birth	1957
Calculated Age	33
Citizenship	USA
Status	Climber
Residence	Boulder, Colorado
Occupation	Alpine guide & film technician
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	8849
Summit Date 1	1990-05-10
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0715
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	106
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	at and above Col
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	5
Summit Term	1
HCN	0
Checksum	2433940
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	peter george (pete) athans
Year of Birth	1957
Year	1990
Age at Expedition	33
Role	Member

Field	Value
ID	10550
Imported	2026-03-06 18:06:05.675609
Expedition ID	EVER90107
Member ID	03
Peak ID	EVER
Year	1990
Season	1
First Name	Wallace Wayne (Wally)
Last Name	Berg
Sex	M
Age	0
Birth Date	-
Year of Birth	1955
Calculated Age	35
Citizenship	USA
Status	Climber
Residence	Copper Mountain, Colorado
Occupation	Alpine guide for outdoor adventure firm in Seattle
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	17
HCN	0
Checksum	2433227
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	wallace wayne (wally) berg
Year of Birth	1955
Year	1990
Age at Expedition	35
Role	Member

Field	Value
ID	10551
Imported	2026-03-06 18:06:05.675609
Expedition ID	EVER90107
Member ID	04
Peak ID	EVER
Year	1990
Season	1
First Name	Michael F. (Mike)
Last Name	Browning
Sex	M
Age	0
Birth Date	-
Year of Birth	1952
Calculated Age	37
Citizenship	USA
Status	Climber
Residence	Boulder, Colorado
Occupation	Attorney
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	8849
Summit Date 1	1990-05-10
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0715
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	106
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	at and above Col
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	True
Injury Date	1990-05-10
Injury Time	-
Injury Type	1
Injury Height (m)	8848
Death Notes	Serious pulmonary edema in descent from top
Member Notes	-
Necrology	-
Summit Bid	5
Summit Term	1
HCN	0
Checksum	2432204
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	michael f. (mike) browning
Year of Birth	1952
Year	1990
Age at Expedition	38
Role	Member

Field	Value
ID	10552
Imported	2026-03-06 18:06:05.675609
Expedition ID	EVER90107
Member ID	05
Peak ID	EVER
Year	1990
Season	1
First Name	Dana Quentin
Last Name	Coffield
Sex	M
Age	0
Birth Date	-
Year of Birth	1958
Calculated Age	32
Citizenship	USA
Status	Climber
Residence	McKinney, Texas
Occupation	Geologist
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	8849
Summit Date 1	1990-05-10
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0715
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	106
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	at and above Col
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	5
Summit Term	1
HCN	0
Checksum	2434353
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	dana quentin coffield
Year of Birth	1958
Year	1990
Age at Expedition	32
Role	Member

Field	Value
ID	10553
Imported	2026-03-06 18:06:05.675609
Expedition ID	EVER90107
Member ID	07
Peak ID	EVER
Year	1990
Season	1
First Name	Scott Eugene
Last Name	Fischer
Sex	M
Age	0
Birth Date	-
Year of Birth	1955
Calculated Age	34
Citizenship	USA
Status	Climber
Residence	Seattle, Washington
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	(1955-1996) Died 11 May 1996 on Everest from exposure and AMS
Summit Bid	1
Summit Term	17
HCN	0
Checksum	2433552
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	scott eugene fischer
Year of Birth	1955
Year	1990
Age at Expedition	35
Role	Member

Field	Value
ID	10554
Imported	2026-03-06 18:06:05.675609
Expedition ID	EVER90107
Member ID	06
Peak ID	EVER
Year	1990
Season	1
First Name	Ron
Last Name	Crotzer
Sex	M
Age	0
Birth Date	-
Year of Birth	1947
Calculated Age	42
Citizenship	USA
Status	Climber
Residence	Golden, Colorado
Occupation	Oil-drilling engineer
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	False
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	0
Summit Term	0
HCN	0
Checksum	2430559
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	ron crotzer
Year of Birth	1947
Year	1990
Age at Expedition	43
Role	Member

Field	Value
ID	10555
Imported	2026-03-06 18:06:05.675609
Expedition ID	EVER90107
Member ID	08
Peak ID	EVER
Year	1990
Season	1
First Name	Charles G.
Last Name	Jones
Sex	M
Age	0
Birth Date	-
Year of Birth	1948
Calculated Age	41
Citizenship	USA
Status	Climber
Residence	Boulder, Colorado
Occupation	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	False
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	0
Summit Term	0
HCN	0
Checksum	2430867
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	charles g. jones
Year of Birth	1948
Year	1990
Age at Expedition	42
Role	Member

Field	Value
ID	10556
Imported	2026-03-06 18:06:05.675609
Expedition ID	EVER90107
Member ID	09
Peak ID	EVER
Year	1990
Season	1
First Name	Andrew Atis (Andy)
Last Name	Lapkass
Sex	M
Age	0
Birth Date	-
Year of Birth	1958
Calculated Age	32
Citizenship	USA
Status	Climber
Residence	Estes Park, Colorado
Occupation	Ski instructor
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	8849
Summit Date 1	1990-05-11
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1000
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	108
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	at and above Col
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	5
Summit Term	1
HCN	0
Checksum	2434293
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	andrew atis (andy) lapkass
Year of Birth	1958
Year	1990
Age at Expedition	32
Role	Member

Field	Value
ID	10557
Imported	2026-03-06 18:06:05.675609
Expedition ID	EVER90107
Member ID	10
Peak ID	EVER
Year	1990
Season	1
First Name	Brent V.
Last Name	Manning
Sex	M
Age	0
Birth Date	-
Year of Birth	1950
Calculated Age	40
Citizenship	USA
Status	Climber
Residence	Bountiful, Utah
Occupation	Attorney
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	8849
Summit Date 1	1990-05-10
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0715
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	106
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	at and above Col
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	5
Summit Term	1
HCN	0
Checksum	2431348
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	brent v. manning
Year of Birth	1950
Year	1990
Age at Expedition	40
Role	Member

Field	Value
ID	10558
Imported	2026-03-06 18:06:05.675609
Expedition ID	EVER90107
Member ID	01
Peak ID	EVER
Year	1990
Season	1
First Name	Glenn Edward
Last Name	Porzak
Sex	M
Age	0
Birth Date	-
Year of Birth	1948
Calculated Age	41
Citizenship	USA
Status	Leader
Residence	Boulder, Colorado
Occupation	Attorney
Leader	True
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	8849
Summit Date 1	1990-05-10
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0715
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	106
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	at and above col
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	5
Summit Term	1
HCN	0
Checksum	2430836
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	glenn edward porzak
Year of Birth	1948
Year	1990
Age at Expedition	42
Role	Leader

Field	Value
ID	10559
Imported	2026-03-06 18:06:05.675609
Expedition ID	EVER90107
Member ID	11
Peak ID	EVER
Year	1990
Season	1
First Name	Ang Jangbu
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1961
Calculated Age	28
Citizenship	Nepal
Status	H-A Worker
Residence	Phortse, Khumbu
Occupation	-
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	True
Sherpa	True
Tibetan	False
Summit Success	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	8849
Summit Date 1	1990-05-10
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0715
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	106
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	Born May 1963 (citzenship papers say 1961)
Necrology	-
Summit Bid	5
Summit Term	1
HCN	0
Checksum	2435476
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	ang jangbu sherpa
Year of Birth	1961
Year	1990
Age at Expedition	29
Role	Hired

Field	Value
ID	10560
Imported	2026-03-06 18:06:05.675609
Expedition ID	EVER90107
Member ID	13
Peak ID	EVER
Year	1990
Season	1
First Name	Nima Tashi
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1960
Calculated Age	30
Citizenship	Nepal
Status	H-A Worker
Residence	Pangboche, Khumbu
Occupation	-
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	True
Sherpa	True
Tibetan	False
Summit Success	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	8849
Summit Date 1	1990-05-10
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0715
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	106
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	2nd ascent of Everest
Necrology	-
Summit Bid	5
Summit Term	1
HCN	0
Checksum	2435067
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	nima tashi sherpa
Year of Birth	1960
Year	1990
Age at Expedition	30
Role	Hired

Field	Value
ID	10561
Imported	2026-03-06 18:06:05.675609
Expedition ID	EVER90107
Member ID	12
Peak ID	EVER
Year	1990
Season	1
First Name	Da Nuru (Dawa Nuru/Norbu)
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1959
Calculated Age	30
Citizenship	Nepal
Status	H-A Worker
Residence	Phortse, Khumbu
Occupation	-
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	True
Sherpa	True
Tibetan	False
Summit Success	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	8849
Summit Date 1	1990-05-10
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0715
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	106
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	5
Summit Term	1
HCN	0
Checksum	2434747
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	da nuru (dawa nuru/norbu) sherpa
Year of Birth	1959
Year	1990
Age at Expedition	31
Role	Hired

13 recorded members.

Name	Sex	Year of Birth	Citizenship	Status	Residence	Occupation
Peter George (Pete) Athans	M	1957	USA	Climber	Boulder, Colorado	Alpine guide & film technician	Details Other expeditions
Wallace Wayne (Wally) Berg	M	1955	USA	Climber	Copper Mountain, Colorado	Alpine guide for outdoor adventure firm in Seattle	Details Other expeditions
Michael F. (Mike) Browning	M	1952	USA	Climber	Boulder, Colorado	Attorney	Details Other expeditions
Dana Quentin Coffield	M	1958	USA	Climber	McKinney, Texas	Geologist	Details Other expeditions
Scott Eugene Fischer	M	1955	USA	Climber	Seattle, Washington	Alpine guide	Details Other expeditions
Ron Crotzer	M	1947	USA	Climber	Golden, Colorado	Oil-drilling engineer	Details Other expeditions
Charles G. Jones	M	1948	USA	Climber	Boulder, Colorado	Surgeon	Details Other expeditions
Andrew Atis (Andy) Lapkass	M	1958	USA	Climber	Estes Park, Colorado	Ski instructor	Details Other expeditions
Brent V. Manning	M	1950	USA	Climber	Bountiful, Utah	Attorney	Details Other expeditions
Glenn Edward Porzak	M	1948	USA	Leader	Boulder, Colorado	Attorney	Details Other expeditions
Ang Jangbu Sherpa	M	1961	Nepal	H-A Worker	Phortse, Khumbu	-	Details Other expeditions
Nima Tashi Sherpa	M	1960	Nepal	H-A Worker	Pangboche, Khumbu	-	Details Other expeditions
Da Nuru (Dawa Nuru/Norbu) Sherpa	M	1959	Nepal	H-A Worker	Phortse, Khumbu	-	Details Other expeditions

References

Field	Value
ID	729
Imported	2026-03-06 18:06:36.307770
Expedition ID	EVER90107
Reference ID	01
Year	1990
Type	2
Journal	AAJ
Author	Porzak, Glenn
Title	Everest and Lhotse
Publisher	-
Publication Date	1991
Language	-
Citation	65:52-57 (1991)
Yak 94	-
Notes	-

Field	Value
ID	4541
Imported	2026-03-06 18:06:36.307770
Expedition ID	EVER90107
Reference ID	02
Year	1990
Type	3
Journal	MM
Author	-
Title	-
Publisher	-
Publication Date	1990
Language	-
Citation	134:9 (Jul 1990)
Yak 94	-
Notes	-

Field	Value
ID	4556
Imported	2026-03-06 18:06:36.307770
Expedition ID	EVER90107
Reference ID	03
Year	1990
Type	3
Journal	MM
Author	-
Title	-
Publisher	-
Publication Date	1990
Language	-
Citation	136:12 (Nov 1990)
Yak 94	-
Notes	-

Field	Value
ID	11642
Imported	2026-03-06 18:06:36.307770
Expedition ID	EVER90107
Reference ID	04
Year	1990
Type	5
Journal	-
Author	-
Title	http://publications.americanalpineclub.org/articles/12199105200/Everest-and-Lhotse
Publisher	-
Publication Date	-
Language	-
Citation	-
Yak 94	-
Notes	-

4 recorded references.

Expedition ID	Journal	Author	Title	Publisher	Citation	Yak 94
EVER90107	AAJ	Porzak, Glenn	Everest and Lhotse	-	65:52-57 (1991)	-
EVER90107	MM	-	-	-	134:9 (Jul 1990)	-
EVER90107	MM	-	-	-	136:12 (Nov 1990)	-
EVER90107	-	-	http://publications.americanalpineclub.org/articles/12199105200/Everest-and-Lhotse	-	-	-