Table II
TABLE II
Geographical Districts
Accidents
1947-1954
1955
Atlantic States—North
14
1
South
2
0
Central
—
2
Colorado
32
4
Utah
4
0
Wyoming
19
3
Montana & Idaho
6
1
Arizona & Nevada
5
0
California
23
4
Oregon
17
3
Washington
20
9
Alaska
4
0
Practice Cliffs—all areas
7
2
Terrain
1947-1954
1955
Rock
100
20
Snow
50
7
River
1
0
Unknown
6
0
Ascent or Descent (River crossing not included here)
Ascent
50
14
Descent
73
12
Unknown
31
1
Immediate Cause
Fall or Slip on Rock
51
6
Loose Rock (handhold pulled out)
11
5
Falling Rock
14
3
Failure of Rappel
12
2
Slip on Snow or Ice
28
3
Fall into Crevasse
6
1
Loss of Control in Voluntary Glissade
8
1
Avalanche
5
1
Lightning
2
0
Failure to Follow Route
1
1
Stuck Rope
1
0
Skiing
1
0
Crampon pierced clothing
0
1
Fall in River
1
0
Unsafe Campsite
1
0
Exposure
0
1
Unknown
10
2
Contributory Causes
Climbing Unroped
43
7
Climbing Alone
15
1
Attempt to Exceed Abilities
18
2
Darkness
7
0
Inadequate Equipment
1
1
Old Rope
5
0
Size of Party
1947-1954
1955
One
16
1
Two
42
3
Three
42
8
Four
14
2
Five
5
1
Six or more
24
4
Unknown
24
8
TABLE II (Continued)
Ages of Individuals
Accidents
1947-1954
1955
Under 15
3
0
15-20 years
51
4
“Young or College Age”
33
1
21-25
29
10
26-30
11
8
31-35
8
5
Over 35
11
0
Unknown
12
4
Affiliated with Climbing Group
Unaffiliated
48
1
Not Stated
52
18
Member of Mountaineering Club
52
13
Estimate of Experience
None or Little
73
7
Moderate
24
6
Experienced
27
11
Unknown
27
18
Month of Year
1952-54
1955
January
2
2
February
2
0
March
0
0
April
8
2
May
7
0
June
4
2
July
20
8
August
27
6
September
12
4
October
7
2
November
2
0
December
1
0