Dhaulagiri I | 2012 NE Ridge

A USA expedition to Dhaulagiri I in 2012 via NE Ridge, led by Cleo Weidlich. Summit reached on 26th May 2012. 2 members recorded.

Expedition Details

Field	Value
ID	7530
Imported	2026-03-06 18:04:49.359634
Expedition ID	DHA112109
Peak ID	DHA1
Year	2012
Season	1
Host Country	1
Route 1	NE Ridge
Route 2	-
Route 3	-
Route 4	-
Nationality	USA
Leaders	Cleo Weidlich
Sponsor	-
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	-
Basecamp Date	2012-05-03
Summit Date	2012-05-26
Summit Time	1521
Summit Days	23
Total Days	26
Termination Date	2012-05-29
Termination Reason	1
Termination Notes	-
High Point (m)	8167
Traverse	False
Ski	False
Paraglide	False
Camps	4
Fixed Rope (m)	1400
Total Members	1
Summit Members	1
Member Deaths	0
Total Hired	1
Summit Hired	1
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 Annapurna (ANN1-121-12)
Campsites	BC(03/05,4600m),C1(12/05,5400m),C2(13/05,6400m),C3(14/05,7200m),C4(25/05,7550m),Smt(26/05)
Route Notes	C2 at bottom of face C3 at above Dutch Rib at French couloir. Cleo and Pema Tshering made their C1 not at the NE Col like most teams, but across the NE Ridge to a flat area on the southern side of the ridge. Their C2, C3 and C4 were on the ridge itself. There was a period of very windy weather when they did not climb high, but they were able to make their summit push from 23 May, when they reoccupied C3, stayed there one day, moved up to pitch C4 on 25 May, a day of extremely strong wind. On 26 May they made their final dash to the top. Despite the winds, they left C4 at 7:30 am, traversed to the right to the couloir, away from the ridge, climbed the area of overhanging seracs and small rock plateaus, and reached the summit at 3:21 pm. They were back in C4 at 7:19 pm and spent the night there. On the next day, the 27th, they descended to C1 and on the 28th were back in BC. (Weidlich somersaulted five vertical meters enroute to BC, but not injured.) Weidlich used oxygen from 7850m (300m above C4) to the summit; Pema used none. Sherpa: Pema Tshering Sherpa, 16/6/70, Mathilow, Walung, Makalu-Barun, Annapurna X1, Dhaulagiri X2, Everest X3, Kangchenjunga X2 (including 2011 with Weidlich), Lhotse X1
Accidents	-
Achievement	-
Agency	Seven Summit Treks
Commercial Route	False
Standard Route	True
Primary Route	False
Primary Member	False
Primary Reference	False
Primary ID	-
Checksum	2461956
Year	2012
Summit Success	True
O2 Summary	Used
Route (lowercase)	ne ridge

Members

Field	Value
ID	55677
Imported	2026-03-06 18:06:05.675609
Expedition ID	DHA112109
Member ID	01
Peak ID	DHA1
Year	2012
Season	1
First Name	Cleonice Pacheco (Cleo)
Last Name	Weidlich
Sex	F
Age	0
Birth Date	-
Year of Birth	1964
Calculated Age	48
Citizenship	USA/Brazil
Status	Leader
Residence	Palo Alto, California
Occupation	Nuclear 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)	8167
Summit Date 1	2012-05-26
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1521
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	From 7850m to smt
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	2436393
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	cleonice pacheco (cleo) weidlich
Year of Birth	1964
Year	2012
Age at Expedition	48
Role	Leader

Field	Value
ID	55678
Imported	2026-03-06 18:06:05.675609
Expedition ID	DHA112109
Member ID	02
Peak ID	DHA1
Year	2012
Season	1
First Name	Pema Chhiring/Pemba
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1980
Calculated Age	32
Citizenship	Nepal
Status	H-A Worker
Residence	Makalu-5, 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)	8167
Summit Date 1	2012-05-26
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1521
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	(1980-2015) Died 25 Mar 2015 on Annapurna I from falling
Summit Bid	5
Summit Term	1
HCN	0
Checksum	2442276
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	pema chhiring/pemba sherpa
Year of Birth	1980
Year	2012
Age at Expedition	32
Role	Hired

2 recorded members.

Name	Sex	Year of Birth	Citizenship	Status	Residence	Occupation
Cleonice Pacheco (Cleo) Weidlich	F	1964	USA/Brazil	Leader	Palo Alto, California	Nuclear engineer	Details Other expeditions
Pema Chhiring/Pemba Sherpa	M	1980	Nepal	H-A Worker	Makalu-5, Makalu-Barun	-	Details Other expeditions

References

0 recorded references.