Ama Dablam | 1991 SW Ridge

A USA expedition to Ama Dablam in 1991 via SW Ridge, led by Thomas Bol. Summit reached on 13th April 1991. 4 members recorded.

Expedition Details

Field	Value
ID	745
Imported	2026-03-06 18:04:49.359634
Expedition ID	AMAD91104
Peak ID	AMAD
Year	1991
Season	1
Host Country	1
Route 1	SW Ridge
Route 2	-
Route 3	-
Route 4	-
Nationality	USA
Leaders	Thomas Bol
Sponsor	1991 American Khumbu Himal Expedition to Ama Dablam
Success 1	False
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	1991-04-03
Summit Date	1991-04-13
Summit Time	-
Summit Days	10
Total Days	0
Termination Date	-
Termination Reason	10
Termination Notes	Abandoned at 6475m due to difficult ice, lack of time
High Point (m)	6475
Traverse	False
Ski	False
Paraglide	False
Camps	3
Fixed Rope (m)	0
Total Members	4
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(03/04,4600m),ABC(07/04,5365m,C1(10/04,5840m),C2(11/04,6100m),C3(12/04,6400m),xxx(13/04,6475m)
Route Notes	See Evan Smith account. On 13th tried to summit, got 250 vertical feet above C3, struck really hard, brittle water ice at 50 degrees instead of expected snow cover.
Accidents	None
Achievement	-
Agency	Above the Clouds
Commercial Route	True
Standard Route	False
Primary Route	False
Primary Member	False
Primary Reference	False
Primary ID	-
Checksum	2453231
Year	1991
Summit Success	False
O2 Summary	None
Route (lowercase)	sw ridge

Field	Value
ID	543
Imported	2026-03-06 18:06:05.675609
Expedition ID	AMAD91104
Member ID	02
Peak ID	AMAD
Year	1991
Season	1
First Name	Jono
Last Name	McKinney
Sex	M
Age	0
Birth Date	-
Year of Birth	1962
Calculated Age	28
Citizenship	USA
Status	Climber
Residence	Lander, Wyoming
Occupation	Alpine guide & outdoor educator
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	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	6475
Summit Date 1	1991-04-13
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	4
Summit Term	12
HCN	0
Checksum	2435973
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	jono mckinney
Year of Birth	1962
Year	1991
Age at Expedition	29
Role	Member

Field	Value
ID	544
Imported	2026-03-06 18:06:05.675609
Expedition ID	AMAD91104
Member ID	03
Peak ID	AMAD
Year	1991
Season	1
First Name	Jefferson (Jeff)
Last Name	Petty
Sex	M
Age	0
Birth Date	-
Year of Birth	1967
Calculated Age	23
Citizenship	USA
Status	Climber
Residence	Lander, Wyoming
Occupation	Alpine guide & outdoor educator
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	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	6475
Summit Date 1	1991-04-13
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	4
Summit Term	12
HCN	0
Checksum	2437813
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	jefferson (jeff) petty
Year of Birth	1967
Year	1991
Age at Expedition	24
Role	Member

4 recorded members.

Name	Sex	Year of Birth	Citizenship	Status	Residence	Occupation
Thomas Bol	M	1964	USA	Leader	Lander, Wyoming	Outdoor educator	Details Other expeditions
Jono McKinney	M	1962	USA	Climber	Lander, Wyoming	Alpine guide & outdoor educator	Details Other expeditions
Jefferson (Jeff) Petty	M	1967	USA	Climber	Lander, Wyoming	Alpine guide & outdoor educator	Details Other expeditions
Rick Rochelle	M	1964	USA	Climber	Lander, Wyoming	Outdoor educator	Details Other expeditions

Field	Value
ID	11358
Imported	2026-03-06 18:06:36.307770
Expedition ID	AMAD91104
Reference ID	02
Year	1991
Type	5
Journal	-
Author	-
Title	http://publications.americanalpineclub.org/articles/12199220803/Asia-Nepal-Ama-Dablam-Southwest-Ridge-Pre-Monsoon
Publisher	-
Publication Date	-
Language	-
Citation	-
Yak 94	-
Notes	-

2 recorded references.

Expedition ID	Journal	Author	Title	Publisher	Citation	Yak 94
AMAD91104	AAJ	Hawley, Elizabeth	-	-	66:208 (1992)	-
AMAD91104	-	-	http://publications.americanalpineclub.org/articles/12199220803/Asia-Nepal-Ama-Dablam-Southwest-Ridge-Pre-Monsoon	-	-	-