Pemthang Karpo Ri | 1955 W side

A Switzerland expedition to Pemthang Karpo Ri in 1955 via W side, led by Raymond Lambert. Summit reached on 14th May 1955. 6 members recorded.

Expedition Details

Field	Value
ID	2730
Imported	2026-03-06 18:04:49.359634
Expedition ID	PEMK55101
Peak ID	PEMK
Year	1955
Season	1
Host Country	1
Route 1	W side
Route 2	-
Route 3	-
Route 4	-
Nationality	Switzerland
Leaders	Raymond Lambert
Sponsor	-
Success 1	True
Success 2	False
Success 3	False
Success 4	False
Ascent 1	1st
Ascent 2	-
Ascent 3	-
Ascent 4	-
Claimed	False
Disputed	False
Countries	Belgium
Approach	Langtang Valley
Basecamp Date	-
Summit Date	1955-05-14
Summit Time	1400
Summit Days	0
Total Days	0
Termination Date	-
Termination Reason	1
Termination Notes	-
High Point (m)	6865
Traverse	False
Ski	False
Paraglide	False
Camps	3
Fixed Rope (m)	0
Total Members	2
Summit Members	1
Member Deaths	0
Total Hired	6
Summit Hired	3
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,C1,C2(5300m),C3(13/05,5760m),Smt(14/05)
Route Notes	Sherpas (names taken from literature): Pasang (1926) Ang Norbu (#216, 1924) Kami Tsering (1932) Nami (sirdar) (#191?) Ang Tsering Pemba Gyaltsen (to C3 only)
Accidents	-
Achievement	-
Agency	-
Commercial Route	-
Standard Route	-
Primary Route	False
Primary Member	False
Primary Reference	-
Primary ID	-
Checksum	2438547
Year	1955
Summit Success	True
O2 Summary	None
Route (lowercase)	w side

Members

Field	Value
ID	22101
Imported	2026-03-06 18:06:05.675609
Expedition ID	PEMK55101
Member ID	01
Peak ID	PEMK
Year	1955
Season	1
First Name	Raymond
Last Name	Lambert
Sex	M
Age	0
Birth Date	-
Year of Birth	1914
Calculated Age	40
Citizenship	Switzerland
Status	Leader
Residence	Geneva, Switzerland
Occupation	-
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	-
High Point (m)	True
Personal High Point (m)	6865
Summit Date 1	1955-05-14
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1400
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	1
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	(1914-1997)
Summit Bid	5
Summit Term	1
HCN	0
Checksum	2418408
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	raymond lambert
Year of Birth	1914
Year	1955
Age at Expedition	41
Role	Leader

Field	Value
ID	24459
Imported	2026-03-06 18:06:05.675609
Expedition ID	PEMK55101
Member ID	02
Peak ID	PEMK
Year	1955
Season	1
First Name	Canon Jules
Last Name	Detry
Sex	M
Age	0
Birth Date	-
Year of Birth	-
Calculated Age	0
Citizenship	Belgium
Status	Scientist
Residence	-
Occupation	Ethnologist
Leader	False
Deputy	False
Basecamp Only	True
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	17
HCN	0
Checksum	-53
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	canon jules detry
Year of Birth	-
Year	1955
Age at Expedition	-
Role	BC Only

Field	Value
ID	26274
Imported	2026-03-06 18:06:05.675609
Expedition ID	PEMK55101
Member ID	03
Peak ID	PEMK
Year	1955
Season	1
First Name	Ang Norbu
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1924
Calculated Age	30
Citizenship	Nepal
Status	H-A Worker
Residence	-
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	-
High Point (m)	True
Personal High Point (m)	6865
Summit Date 1	1955-05-14
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1400
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	1
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	-2026
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	ang norbu sherpa
Year of Birth	1924
Year	1955
Age at Expedition	31
Role	Hired

Field	Value
ID	26275
Imported	2026-03-06 18:06:05.675609
Expedition ID	PEMK55101
Member ID	04
Peak ID	PEMK
Year	1955
Season	1
First Name	Kami Tshering
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1932
Calculated Age	22
Citizenship	Nepal
Status	H-A Worker
Residence	-
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	-
High Point (m)	True
Personal High Point (m)	6865
Summit Date 1	1955-05-14
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1400
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	1
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	-2034
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	kami tshering sherpa
Year of Birth	1932
Year	1955
Age at Expedition	23
Role	Hired

Field	Value
ID	26276
Imported	2026-03-06 18:06:05.675609
Expedition ID	PEMK55101
Member ID	05
Peak ID	PEMK
Year	1955
Season	1
First Name	Pasang
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1926
Calculated Age	28
Citizenship	Nepal
Status	H-A Worker
Residence	-
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	-
High Point (m)	True
Personal High Point (m)	6865
Summit Date 1	1955-05-14
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1400
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	1
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	-2028
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	pasang sherpa
Year of Birth	1926
Year	1955
Age at Expedition	29
Role	Hired

Field	Value
ID	26277
Imported	2026-03-06 18:06:05.675609
Expedition ID	PEMK55101
Member ID	06
Peak ID	PEMK
Year	1955
Season	1
First Name	Pemba Gyaltzen
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	-
Calculated Age	0
Citizenship	Nepal
Status	H-A Worker
Residence	-
Occupation	-
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	True
Sherpa	True
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)	5760
Summit Date 1	1955-05-13
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	15
HCN	0
Checksum	-53
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	pemba gyaltzen sherpa
Year of Birth	-
Year	1955
Age at Expedition	-
Role	Hired

6 recorded members.

Name	Sex	Year of Birth	Citizenship	Status	Residence	Occupation
Raymond Lambert	M	1914	Switzerland	Leader	Geneva, Switzerland	-	Details Other expeditions
Canon Jules Detry	M	-	Belgium	Scientist	-	Ethnologist	Details Other expeditions
Ang Norbu Sherpa	M	1924	Nepal	H-A Worker	-	-	Details Other expeditions
Kami Tshering Sherpa	M	1932	Nepal	H-A Worker	-	-	Details Other expeditions
Pasang Sherpa	M	1926	Nepal	H-A Worker	-	-	Details Other expeditions
Pemba Gyaltzen Sherpa	M	-	Nepal	H-A Worker	-	-	Details Other expeditions

References

Field	Value
ID	927
Imported	2026-03-06 18:06:36.307770
Expedition ID	PEMK55101
Reference ID	01
Year	1955
Type	2
Journal	AAJ
Author	-
Title	-
Publisher	-
Publication Date	1956
Language	-
Citation	30:139-140 (1956)
Yak 94	-
Notes	-

Field	Value
ID	7576
Imported	2026-03-06 18:06:36.307770
Expedition ID	PEMK55101
Reference ID	02
Year	1955
Type	1
Journal	-
Author	Kurz, Marcel
Title	Chronique Himalayenne (Supplement)
Publisher	Fondation Suisse Pour Explorations Alpines, Zurich
Publication Date	1963
Language	French
Citation	454-460
Yak 94	-
Notes	-

Field	Value
ID	13337
Imported	2026-03-06 18:06:36.307770
Expedition ID	PEMK55101
Reference ID	03
Year	1955
Type	5
Journal	-
Author	-
Title	http://publications.americanalpineclub.org/articles/12195613902/Asia-Nepal-Langtang-Himal
Publisher	-
Publication Date	-
Language	-
Citation	-
Yak 94	-
Notes	-

3 recorded references.

Expedition ID	Journal	Author	Title	Publisher	Citation	Yak 94
PEMK55101	AAJ	-	-	-	30:139-140 (1956)	-
PEMK55101	-	Kurz, Marcel	Chronique Himalayenne (Supplement)	Fondation Suisse Pour Explorations Alpines, Zurich	454-460	-
PEMK55101	-	-	http://publications.americanalpineclub.org/articles/12195613902/Asia-Nepal-Langtang-Himal	-	-	-