Cho Oyu | 2011 NW side

A Bolivia expedition to Cho Oyu in 2011 via NW side, led by Bernardo Guarachi. Summit reached on 5th May 2011. 2 members recorded.

Expedition Details

Field	Value
ID	7342
Imported	2026-03-06 18:04:49.359634
Expedition ID	CHOY11116
Peak ID	CHOY
Year	2011
Season	1
Host Country	2
Route 1	NW side
Route 2	-
Route 3	-
Route 4	-
Nationality	Bolivia
Leaders	Bernardo Guarachi
Sponsor	Father & Son Bolivian Cho Oyu Expedition
Success 1	False
Success 2	False
Success 3	False
Success 4	False
Ascent 1	-
Ascent 2	-
Ascent 3	-
Ascent 4	-
Claimed	True
Disputed	False
Countries	-
Approach	Lhasa->Xigatse->Tingri->BC
Basecamp Date	2011-04-18
Summit Date	2011-05-05
Summit Time	1220
Summit Days	17
Total Days	21
Termination Date	2011-05-09
Termination Reason	3
Termination Notes	-
High Point (m)	8000
Traverse	False
Ski	False
Paraglide	False
Camps	3
Fixed Rope (m)	0
Total Members	2
Summit Members	0
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	False
O2 Unknown	False
Other Summits	-
Campsites	BC(18/04,4900m),ABC(20/04,5700m),C1(23/04,6400m),C2(28/04,6800m),C3(04/05,7400m),xxx(05/05,8000m)
Route Notes	BC at CBC/IC on 19 April at 5400m C1 at half camp. The father and son team started their summit push from C3 at 6 am on 5 May. They got to the top at 12:20 pm and stayed on summit for 40 minutes. They could not see Everest as Nepal side was totally cloudy. Then they went down to C3 where they arrived at 5 pm. Both continued to descend to 6800m (half camp) and slept there. Next day 6 May went down to ABC. Guarachis said that the night of 4 May was very cold and windy. They could not sleep that night. At about 4 am of 5 May the wind stopped. The father-son team showed me their photos of summit which has some peaks in the background. I copied the photos into my laptop and showed later to French climber Aymeric Vinot who summited Cho Oyu in the same season. According to Vinot the peaks in the background are in Tibet and can be seen from Cho Oyu BC. Vinot said that claimed summit photos are not of the Cho Oyu summit because the peaks in the background cannot be seen from the summit. Later, I talked to Korean climber Kim Jae-Soo who summited Cho Oyu, also said that no Tibetan peaks can be seen from the summit of Cho Oyu. The Bolivians high point may be a little above 8000m.
Accidents	-
Achievement	-
Agency	Asian Trekking
Commercial Route	True
Standard Route	True
Primary Route	False
Primary Member	False
Primary Reference	False
Primary ID	-
Checksum	2461298
Year	2011
Summit Success	False
O2 Summary	None
Route (lowercase)	nw side

Members

Field	Value
ID	54696
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY11116
Member ID	01
Peak ID	CHOY
Year	2011
Season	1
First Name	Bernardo
Last Name	Guarachi Mamani
Sex	M
Age	0
Birth Date	-
Year of Birth	1952
Calculated Age	58
Citizenship	Bolivia
Status	Leader
Residence	La Paz, Bolivia
Occupation	Alpine guide
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	True
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	False
High Point (m)	True
Personal High Point (m)	8000
Summit Date 1	2011-05-05
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1220
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	4
Summit Term	18
HCN	0
Checksum	2432389
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	bernardo guarachi mamani
Year of Birth	1952
Year	2011
Age at Expedition	59
Role	Leader

Field	Value
ID	54697
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY11116
Member ID	02
Peak ID	CHOY
Year	2011
Season	1
First Name	Elio Bernardo
Last Name	Guarachi Jemio
Sex	M
Age	0
Birth Date	-
Year of Birth	1985
Calculated Age	26
Citizenship	Bolivia
Status	Climber
Residence	La Paz, Bolivia
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	True
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	False
High Point (m)	True
Personal High Point (m)	8000
Summit Date 1	2011-05-05
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1220
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	4
Summit Term	18
HCN	0
Checksum	2444098
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	elio bernardo guarachi jemio
Year of Birth	1985
Year	2011
Age at Expedition	26
Role	Member

2 recorded members.

Name	Sex	Year of Birth	Citizenship	Status	Residence	Occupation
Bernardo Guarachi Mamani	M	1952	Bolivia	Leader	La Paz, Bolivia	Alpine guide	Details Other expeditions
Elio Bernardo Guarachi Jemio	M	1985	Bolivia	Climber	La Paz, Bolivia	Alpine guide	Details Other expeditions

References

0 recorded references.