Cho Oyu | 1999 NW side (direct rte)

A Mexico expedition to Cho Oyu in 1999 via NW side (direct rte), led by Andreas Delgado. Summit reached on 23rd April 1999. 3 members recorded.

Expedition Details

Field	Value
ID	3298
Imported	2026-03-06 18:04:49.359634
Expedition ID	CHOY99114
Peak ID	CHOY
Year	1999
Season	1
Host Country	2
Route 1	NW side (direct rte)
Route 2	NW side
Route 3	-
Route 4	-
Nationality	Mexico
Leaders	Andreas Delgado
Sponsor	Mexican Cho Oyu Expedition
Success 1	True
Success 2	True
Success 3	False
Success 4	False
Ascent 1	322
Ascent 2	327
Ascent 3	-
Ascent 4	-
Claimed	False
Disputed	False
Countries	-
Approach	-
Basecamp Date	1999-04-04
Summit Date	1999-04-23
Summit Time	0955
Summit Days	19
Total Days	35
Termination Date	1999-05-09
Termination Reason	1
Termination Notes	-
High Point (m)	8188
Traverse	False
Ski	False
Paraglide	False
Camps	2
Fixed Rope (m)	0
Total Members	3
Summit Members	2
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(04/04),ABC(07/04,6400m),C2(22/04,7100m),Smt(23/04,03/05)
Route Notes	23rd Delgado left C2 1:30 am NST with Ochoa and climbed straight line. Ochoa abandoned attempt at 7600m where he saw body and so upset him he turned back and down to ABC. Delgado continued to top at 9:55 am and to the C2 at 1:30 pm - to ABC 24th. Both left 29th for C1 and 1st to C2 and 2nd made C3 for ascent via normal curved route. 3rd left C3 at 3:00 am and on top 11:45 am together and down to C2 at 4:00 pm and ABC on 4th. 9th ABC to BC to Tingri. Worked together with Colombians but summit on different days - "smooth expedition." Orsorio went only to BC, then trekked around area - had slight altitude problem but also psychological problems (going through a divorce).
Accidents	-
Achievement	-
Agency	Asian Trekking
Commercial Route	True
Standard Route	True
Primary Route	False
Primary Member	False
Primary Reference	-
Primary ID	-
Checksum	2457071
Year	1999
Summit Success	True
O2 Summary	None
Route (lowercase)	nw side (direct rte)

Members

Field	Value
ID	24733
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY99114
Member ID	01
Peak ID	CHOY
Year	1999
Season	1
First Name	Andres
Last Name	Delgado Calderon
Sex	M
Age	0
Birth Date	-
Year of Birth	1969
Calculated Age	29
Citizenship	Mexico
Status	Leader
Residence	Mexico City, Mexico
Occupation	Employee in conveyor-belt distribution company
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)	8188
Summit Date 1	1999-04-23
Summit Date 2	1999-05-03
Summit Date 3	-
Summit Time 1	0955
Summit Time 2	1145
Summit Time 3	-
Route 1	1
Route 2	2
Route 3	0
Ascent 1	322
Ascent 2	327
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	Summited twice
Necrology	(1969-2006) In Oct 2006 disappeared on Changabang
Summit Bid	5
Summit Term	1
HCN	0
Checksum	2438286
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	andres delgado calderon
Year of Birth	1969
Year	1999
Age at Expedition	30
Role	Leader

Field	Value
ID	24734
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY99114
Member ID	02
Peak ID	CHOY
Year	1999
Season	1
First Name	Alejandro
Last Name	Ochoa Reyes
Sex	M
Age	0
Birth Date	-
Year of Birth	1976
Calculated Age	22
Citizenship	Mexico
Status	Climber
Residence	Guadalajara, Mexico
Occupation	Student of architecture
Leader	False
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)	8188
Summit Date 1	1999-05-03
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1145
Summit Time 2	-
Summit Time 3	-
Route 1	2
Route 2	0
Route 3	0
Ascent 1	327
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	2440891
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	alejandro ochoa reyes
Year of Birth	1976
Year	1999
Age at Expedition	23
Role	Member

Field	Value
ID	24735
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY99114
Member ID	03
Peak ID	CHOY
Year	1999
Season	1
First Name	Felipe G.
Last Name	Osorio
Sex	M
Age	0
Birth Date	-
Year of Birth	1956
Calculated Age	42
Citizenship	Mexico
Status	Climber
Residence	Oaxaca, Mexico
Occupation	Civil engineer
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	2433534
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	felipe g. osorio
Year of Birth	1956
Year	1999
Age at Expedition	43
Role	BC Only

3 recorded members.

Name	Sex	Year of Birth	Citizenship	Status	Residence	Occupation
Andres Delgado Calderon	M	1969	Mexico	Leader	Mexico City, Mexico	Employee in conveyor-belt distribution company	Details Other expeditions
Alejandro Ochoa Reyes	M	1976	Mexico	Climber	Guadalajara, Mexico	Student of architecture	Details Other expeditions
Felipe G. Osorio	M	1956	Mexico	Climber	Oaxaca, Mexico	Civil engineer	Details Other expeditions

References

Field	Value
ID	5315
Imported	2026-03-06 18:06:36.307770
Expedition ID	CHOY99114
Reference ID	01
Year	1999
Type	3
Journal	HIGH
Author	-
Title	-
Publisher	-
Publication Date	1999
Language	-
Citation	205:67 (Dec 1999)
Yak 94	-
Notes	-

1 recorded references.

Expedition ID	Journal	Author	Title	Publisher	Citation	Yak 94
CHOY99114	HIGH	-	-	-	205:67 (Dec 1999)	-