Cho Oyu | 1999 NW side

A USA expedition to Cho Oyu in 1999 via NW side, led by Brad Hasley. Summit reached on 21st September 1999. 6 members recorded.

Expedition Details

Field	Value
ID	3432
Imported	2026-03-06 18:04:49.359634
Expedition ID	CHOY99320
Peak ID	CHOY
Year	1999
Season	3
Host Country	2
Route 1	NW side
Route 2	-
Route 3	-
Route 4	-
Nationality	USA
Leaders	Brad Hasley
Sponsor	1999 Colorado Cho Oyu 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	Sweden
Approach	-
Basecamp Date	1999-09-05
Summit Date	1999-09-21
Summit Time	-
Summit Days	16
Total Days	24
Termination Date	1999-09-29
Termination Reason	5
Termination Notes	Abandoned at 7400m due to dangerous snow conditions and chest deep snow
High Point (m)	7400
Traverse	False
Ski	False
Paraglide	False
Camps	2
Fixed Rope (m)	0
Total Members	6
Summit Members	0
Member Deaths	0
Total Hired	4
Summit Hired	0
Hired Deaths	0
No Hired	False
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Taken	False
O2 Unknown	False
Other Summits	-
Campsites	BC(05/09,5575m),ABC(08/09,6400m),C1(14/09,7025m),C2(21/09),xxx(21,23/09,7400m)
Route Notes	C3 sited at 7300m but never occupied.
Accidents	-
Achievement	-
Agency	Asian Trekking
Commercial Route	True
Standard Route	True
Primary Route	False
Primary Member	False
Primary Reference	False
Primary ID	-
Checksum	2457222
Year	1999
Summit Success	False
O2 Summary	None
Route (lowercase)	nw side

Members

Field	Value
ID	25589
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY99320
Member ID	01
Peak ID	CHOY
Year	1999
Season	3
First Name	Brad
Last Name	Hasley
Sex	M
Age	0
Birth Date	-
Year of Birth	1962
Calculated Age	37
Citizenship	USA
Status	Leader
Residence	Vail, Colorado
Occupation	Landscape contractor
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)	True
Personal High Point (m)	7400
Summit Date 1	1999-09-23
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	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	4
HCN	0
Checksum	2435803
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	brad hasley
Year of Birth	1962
Year	1999
Age at Expedition	37
Role	Leader

Field	Value
ID	25590
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY99320
Member ID	02
Peak ID	CHOY
Year	1999
Season	3
First Name	Berit Maria
Last Name	Motin
Sex	F
Age	0
Birth Date	-
Year of Birth	1965
Calculated Age	34
Citizenship	Sweden
Status	Climber
Residence	Avon, Colorado
Occupation	Ski patroller
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	4
HCN	0
Checksum	2436758
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	berit maria motin
Year of Birth	1965
Year	1999
Age at Expedition	34
Role	Member

Field	Value
ID	25591
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY99320
Member ID	03
Peak ID	CHOY
Year	1999
Season	3
First Name	Richard Rine
Last Name	Strohecker III
Sex	M
Age	0
Birth Date	-
Year of Birth	1958
Calculated Age	40
Citizenship	USA
Status	Climber
Residence	Minturn, Colorado
Occupation	Doctor's office staff
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	4
HCN	0
Checksum	2434373
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	richard rine strohecker iii
Year of Birth	1958
Year	1999
Age at Expedition	41
Role	Member

Field	Value
ID	25592
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY99320
Member ID	04
Peak ID	CHOY
Year	1999
Season	3
First Name	David (Dave)
Last Name	Tucholke
Sex	M
Age	0
Birth Date	-
Year of Birth	1962
Calculated Age	36
Citizenship	USA
Status	Climber
Residence	Avon, Colorado
Occupation	Operates snow-making machine
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	4
HCN	0
Checksum	2435927
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	david (dave) tucholke
Year of Birth	1962
Year	1999
Age at Expedition	37
Role	Member

Field	Value
ID	25593
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY99320
Member ID	05
Peak ID	CHOY
Year	1999
Season	3
First Name	Tom
Last Name	Vinson
Sex	M
Age	0
Birth Date	-
Year of Birth	1962
Calculated Age	36
Citizenship	USA
Status	Climber
Residence	Bailey, Colorado
Occupation	Waste management expert
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	4
HCN	0
Checksum	2435881
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	tom vinson
Year of Birth	1962
Year	1999
Age at Expedition	37
Role	Member

Field	Value
ID	25594
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY99320
Member ID	06
Peak ID	CHOY
Year	1999
Season	3
First Name	Maldwyn
Last Name	Zang
Sex	M
Age	0
Birth Date	-
Year of Birth	1957
Calculated Age	41
Citizenship	USA
Status	Climber
Residence	Vail, Colorado
Occupation	Carpenter
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	4
HCN	0
Checksum	2434093
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	maldwyn zang
Year of Birth	1957
Year	1999
Age at Expedition	42
Role	Member

6 recorded members.

Name	Sex	Year of Birth	Citizenship	Status	Residence	Occupation
Brad Hasley	M	1962	USA	Leader	Vail, Colorado	Landscape contractor	Details Other expeditions
Berit Maria Motin	F	1965	Sweden	Climber	Avon, Colorado	Ski patroller	Details Other expeditions
Richard Rine Strohecker III	M	1958	USA	Climber	Minturn, Colorado	Doctor's office staff	Details Other expeditions
David (Dave) Tucholke	M	1962	USA	Climber	Avon, Colorado	Operates snow-making machine	Details Other expeditions
Tom Vinson	M	1962	USA	Climber	Bailey, Colorado	Waste management expert	Details Other expeditions
Maldwyn Zang	M	1957	USA	Climber	Vail, Colorado	Carpenter	Details Other expeditions

References

0 recorded references.