Cho Oyu | 2012 NW side

A Mexico expedition to Cho Oyu in 2012 via NW side, led by Eva Martinez. Summit reached on 7th May 2012. 1 members recorded.

Expedition Details

Field	Value
ID	7523
Imported	2026-03-06 18:04:49.359634
Expedition ID	CHOY12103
Peak ID	CHOY
Year	2012
Season	1
Host Country	2
Route 1	NW side
Route 2	-
Route 3	-
Route 4	-
Nationality	Mexico
Leaders	Eva Martinez
Sponsor	Mexican Cho Oyu Expedition
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	-
Approach	Nyalam->Tingri->BC
Basecamp Date	2012-04-15
Summit Date	2012-05-07
Summit Time	1445
Summit Days	22
Total Days	34
Termination Date	2012-05-19
Termination Reason	1
Termination Notes	-
High Point (m)	8188
Traverse	False
Ski	False
Paraglide	False
Camps	2
Fixed Rope (m)	0
Total Members	1
Summit Members	1
Member Deaths	0
Total Hired	0
Summit Hired	0
Hired Deaths	0
No Hired	True
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Taken	True
O2 Unknown	False
Other Summits	-
Campsites	BC(15/04,5400m),ABC(19/04,5700m),C1(26/04,6300m),C2(06/05,7135m),Smt(07/05)
Route Notes	Martinez left C2 at 2 pm CST of 6 May. She got to the top at 5 pm (2:45 pm NST) of 7 May, stayed on summit for five minutes. It was cloudy and could not see Everest. There was a red oxygen cyclinder with yellow colour lower part and she saw small heap of prayer flags about 5 meters away from the cyclinder. Other climbers followed her were Andrey, Sergey and a Japanese with Sherpa. She returned to C2 at 11 pm and spent night in other expedition's tent. Next day 8 May she slept at C1. On 9 May she went down to ABC. The summit day weather was very bad, cloudy, windy and snowfall.
Accidents	-
Achievement	-
Agency	Monterosa Treks
Commercial Route	True
Standard Route	True
Primary Route	False
Primary Member	False
Primary Reference	False
Primary ID	-
Checksum	2461667
Year	2012
Summit Success	True
O2 Summary	None
Route (lowercase)	nw side

Members

Field	Value
ID	55655
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY12103
Member ID	01
Peak ID	CHOY
Year	2012
Season	1
First Name	Eva
Last Name	Martinez Sandoval
Sex	F
Age	0
Birth Date	-
Year of Birth	1966
Calculated Age	45
Citizenship	Mexico
Status	Leader
Residence	Tlalnepantla de Baz, Estado de Mexico, Mexico
Occupation	Secretary
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	2012-05-07
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1445
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	5
Summit Term	1
HCN	0
Checksum	2437301
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	eva martinez sandoval
Year of Birth	1966
Year	2012
Age at Expedition	46
Role	Leader

1 recorded members.

Name	Sex	Year of Birth	Citizenship	Status	Residence	Occupation
Eva Martinez Sandoval	F	1966	Mexico	Leader	Tlalnepantla de Baz, Estado de Mexico, Mexico	Secretary	Details Other expeditions

References

0 recorded references.