Cho Oyu | 2025 NW side

A USA expedition to Cho Oyu in 2025 via NW side, led by Anthony Marra. Summit reached on 13th October 2025. 8 members recorded.

Expedition Details

Change history — how this expedition, its members and references have changed between database releases.

Field	Value
ID	3764
Imported	2026-11-04 22:32:23.994980
Expedition ID	CHOY25307
Peak ID	CHOY
Year	2025
Season	3
Host Country	2
Route 1	NW side
Route 2	-
Route 3	-
Route 4	-
Nationality	USA
Leaders	Anthony Marra
Sponsor	Snowy Horizon Cho Oyu Expedition 2025
Success 1	True
Success 2	False
Success 3	False
Success 4	False
Ascent 1	-
Ascent 2	-
Ascent 3	-
Ascent 4	-
Claimed	False
Disputed	False
Countries	Canada, France
Approach	-
Basecamp Date	-
Summit Date	2025-10-13
Summit Time	0735
Summit Days	0
Total Days	0
Termination Date	-
Termination Reason	1
Termination Notes	-
High Point (m)	8188
Traverse	False
Ski	False
Paraglide	False
Camps	2
Fixed Rope (m)	0
Total Members	4
Summit Members	4
Member Deaths	0
Total Hired	4
Summit Hired	4
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	ABC,C1,C2,Smt(13/10)
Route Notes	-
Accidents	-
Achievement	-
Agency	Snowy Horizon Treks
Commercial Route	True
Standard Route	True
Primary Route	False
Primary Member	False
Primary Reference	False
Primary ID	-
Checksum	2464292
Year	2025
Summit Success	True
O2 Summary	Used
Route (lowercase)	nw side

Members

Field	Value
ID	26774
Imported	2026-11-04 22:32:24.749110
Expedition ID	CHOY25307
Member ID	01
Peak ID	CHOY
Year	2025
Season	3
First Name	Anthony Brooks
Last Name	Marra
Sex	M
Age	0
Birth Date	-
Year of Birth	1991
Calculated Age	34
Citizenship	USA
Status	Leader
Residence	Salt Lake City, Utah
Occupation	Chemical engineer
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	False
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2025-10-13
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0735
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	5
Summit Term	1
HCN	0
Checksum	2446210
Summit Note 1	0
Summit Note 2	0
Summit Note 3	0
Death Route	0
Name (lowercase)	anthony brooks marra
Year of Birth	1991
Year	2025
Age at Expedition	34
Role	Leader

Field	Value
ID	26775
Imported	2026-11-04 22:32:24.749110
Expedition ID	CHOY25307
Member ID	02
Peak ID	CHOY
Year	2025
Season	3
First Name	Freddy
Last Name	Journet
Sex	M
Age	0
Birth Date	-
Year of Birth	1973
Calculated Age	52
Citizenship	France
Status	Climber
Residence	St. Hilaire, Aude, France
Occupation	Cable car technical operator
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	False
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2025-10-13
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0915
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	5
Summit Term	1
HCN	0
Checksum	2439638
Summit Note 1	0
Summit Note 2	0
Summit Note 3	0
Death Route	0
Name (lowercase)	freddy journet
Year of Birth	1973
Year	2025
Age at Expedition	52
Role	Member

Field	Value
ID	26776
Imported	2026-11-04 22:32:24.749110
Expedition ID	CHOY25307
Member ID	03
Peak ID	CHOY
Year	2025
Season	3
First Name	Elisabeth Dorothy
Last Name	Marra
Sex	F
Age	0
Birth Date	-
Year of Birth	1998
Calculated Age	27
Citizenship	USA
Status	Climber
Residence	Salt Lake City, Utah
Occupation	-
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	False
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2025-10-13
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0735
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	5
Summit Term	1
HCN	0
Checksum	2448801
Summit Note 1	0
Summit Note 2	0
Summit Note 3	0
Death Route	0
Name (lowercase)	elisabeth dorothy marra
Year of Birth	1998
Year	2025
Age at Expedition	27
Role	Member

Field	Value
ID	26777
Imported	2026-11-04 22:32:24.749110
Expedition ID	CHOY25307
Member ID	04
Peak ID	CHOY
Year	2025
Season	3
First Name	William
Last Name	McCarvill
Sex	M
Age	0
Birth Date	-
Year of Birth	1991
Calculated Age	33
Citizenship	Canada
Status	Climber
Residence	-
Occupation	-
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	False
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2025-10-13
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0915
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	5
Summit Term	1
HCN	0
Checksum	2446518
Summit Note 1	0
Summit Note 2	0
Summit Note 3	0
Death Route	0
Name (lowercase)	william mccarvill
Year of Birth	1991
Year	2025
Age at Expedition	34
Role	Member

Field	Value
ID	26778
Imported	2026-11-04 22:32:24.749110
Expedition ID	CHOY25307
Member ID	05
Peak ID	CHOY
Year	2025
Season	3
First Name	Chhiring (Tshering)
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1991
Calculated Age	34
Citizenship	Nepal
Status	H-A Worker
Residence	Chitre, Sisuwa-9, Makalu-Barun
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	True
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2025-10-13
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0735
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	Nephew of Lhakpa/Lakpa Sherpa (Tamku) Speed climbing alone
Necrology	-
Summit Bid	5
Summit Term	1
HCN	0
Checksum	2446403
Summit Note 1	0
Summit Note 2	0
Summit Note 3	0
Death Route	0
Name (lowercase)	chhiring (tshering) sherpa
Year of Birth	1991
Year	2025
Age at Expedition	34
Role	Hired

Field	Value
ID	26779
Imported	2026-11-04 22:32:24.749110
Expedition ID	CHOY25307
Member ID	06
Peak ID	CHOY
Year	2025
Season	3
First Name	Furdeni
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1996
Calculated Age	28
Citizenship	Nepal
Status	H-A Worker
Residence	Diktel Rupakot Majhuwagadhi-2, Khotang
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	False
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2025-10-13
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0817
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	5
Summit Term	1
HCN	0
Checksum	2448328
Summit Note 1	0
Summit Note 2	0
Summit Note 3	0
Death Route	0
Name (lowercase)	furdeni sherpa
Year of Birth	1996
Year	2025
Age at Expedition	29
Role	Hired

Field	Value
ID	26780
Imported	2026-11-04 22:32:24.749110
Expedition ID	CHOY25307
Member ID	07
Peak ID	CHOY
Year	2025
Season	3
First Name	Jangbu
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1973
Calculated Age	51
Citizenship	Nepal
Status	H-A Worker
Residence	Bakachol-9, Khotang
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	False
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2025-10-13
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0859
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	5
Summit Term	1
HCN	0
Checksum	2439934
Summit Note 1	0
Summit Note 2	0
Summit Note 3	0
Death Route	0
Name (lowercase)	jangbu sherpa
Year of Birth	1973
Year	2025
Age at Expedition	52
Role	Hired

Field	Value
ID	26781
Imported	2026-11-04 22:32:24.749110
Expedition ID	CHOY25307
Member ID	08
Peak ID	CHOY
Year	2025
Season	3
First Name	Ming Dorchi
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1993
Calculated Age	32
Citizenship	Nepal
Status	H-A Worker
Residence	Makalu-4, Makalu-Barun
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	False
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2025-10-13
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0913
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	5
Summit Term	1
HCN	0
Checksum	2447001
Summit Note 1	0
Summit Note 2	0
Summit Note 3	0
Death Route	0
Name (lowercase)	ming dorchi sherpa
Year of Birth	1993
Year	2025
Age at Expedition	32
Role	Hired

8 recorded members.

Name	Sex	Year of Birth	Citizenship	Status	Residence	Occupation
Anthony Brooks Marra	M	1991	USA	Leader	Salt Lake City, Utah	Chemical engineer	Details Other expeditions
Freddy Journet	M	1973	France	Climber	St. Hilaire, Aude, France	Cable car technical operator	Details Other expeditions
Elisabeth Dorothy Marra	F	1998	USA	Climber	Salt Lake City, Utah	-	Details Other expeditions
William McCarvill	M	1991	Canada	Climber	-	-	Details Other expeditions
Chhiring (Tshering) Sherpa	M	1991	Nepal	H-A Worker	Chitre, Sisuwa-9, Makalu-Barun	-	Details Other expeditions
Furdeni Sherpa	M	1996	Nepal	H-A Worker	Diktel Rupakot Majhuwagadhi-2, Khotang	-	Details Other expeditions
Jangbu Sherpa	M	1973	Nepal	H-A Worker	Bakachol-9, Khotang	-	Details Other expeditions
Ming Dorchi Sherpa	M	1993	Nepal	H-A Worker	Makalu-4, Makalu-Barun	-	Details Other expeditions

References

Field	Value
ID	3362
Imported	2026-11-04 22:32:27.711802
Expedition ID	CHOY25307
Reference ID	01
Year	2025
Type	5
Journal	-
Author	-
Title	https://explorersweb.com/autumn-8000m-roundup-failure-on-makalu-and-dhaulagiri-success-on-cho-oyu/
Publisher	-
Publication Date	-
Language	-
Citation	-
Yak 94	-
Notes	-

Field	Value
ID	3363
Imported	2026-11-04 22:32:27.711802
Expedition ID	CHOY25307
Reference ID	02
Year	2025
Type	5
Journal	-
Author	-
Title	https://thehimalayantimes.com/nepal/chhiring-sherpa-summits-mt-cho-oyu-completes-all-14-peaks-above-8000m
Publisher	-
Publication Date	-
Language	-
Citation	-
Yak 94	-
Notes	-

2 recorded references.

Expedition ID	Journal	Author	Title	Publisher	Citation	Yak 94
CHOY25307	-	-	https://explorersweb.com/autumn-8000m-roundup-failure-on-makalu-and-dhaulagiri-success-on-cho-oyu/	-	-	-
CHOY25307	-	-	https://thehimalayantimes.com/nepal/chhiring-sherpa-summits-mt-cho-oyu-completes-all-14-peaks-above-8000m	-	-	-