Table II
TABLE II
Accidents
Geographical Districts
1947-1957
1958
Atlantic States—North
25
4
South
4
0
Central
2
0
Colorado
52
0
Utah & New Mexico
8
0
Wyoming
35
4
Montana & Idaho
8
0
Accidents
1947-1957
1958
Arizona & Nevada
5
0
California
45
6
Oregon
23
5
Washington
58
8
Alaska
4
1
Practice Cliffs—all areas
18
1
Terrain
Rock
184
20
Snow
91
8
River
1
0
Unknown
6
0
Ascent or Descent (River crossing not included)
Ascent
109
17
Descent
134
10
Unknown
36
1
Immediate Cause
Fall or Slip on Rock
92
10
Loose Rock (Handhold Pulled Out)
19
1
Failure of Piton
2
0
Falling Rock
27
5
Failure of Rappel
21
0
Slip on Snow or Ice
45
2
Fall into Crevasse
10
0
Loss of Control in Voluntary Glissade
18
2
Avalanche
9
0
Lightning
4
1
Failure to Follow Route
2
2
Stuck Rope
2
0
Skiing
1
0
Crampon pierced clothing and/or ripped by
3
0
Fall in River
1
0
Unsafe Campsite
1
0
Exposure and/or Exhaustion
5
2
Heat Prostration
1
0
Illness, Medical
0
2
Unknown
14
2
Contributory Causes
Climbing Unroped
76
5
Climbing Alone
26
1
Attempt to Exceed Abilities (Unexperienced)
37
3
Darkness
8
0
Inadequate Equipment
8
2
Old Rope
8
0
Accidents
1947-1957
1958
Size of Party
One
27
1
Two
68
6
Three
69
6
Four
32
4
Five
14
3
Six or More
44
8
Unknown
38
0
Age of Individuals
Under 15
5
3
15-20 years
99
13
“Young or College Age”
41
0
21-25
69
6
26-30
34
3
31-35
27
1
Over 35
20
3
Unknown
23
1
Unaffiliated with Climbing Group
Unaffiliated
68
13
Not Stated
98
3
Member of Mountaineering Club
118
13
Estimate of Experience
None or Little
118
12
Moderate
58
12
Experienced
44
4
Unknown
63
0
Month of Year
January
5
1
February
10
1
March
3
3
April
15
1
May
16
4
June
20
3
July
43
5
August
50
6
September
31
3
October
12
1
November
7
1
December
4
0