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Reported Mountaineering Accidents, Table IV

Miscellaneous Information Numbers Refer to Number of Persons Involved



1951-62

1959-62

1963





U.S.

CAN.

U.S.

CAN.



Terrain



Rock

365

4

56

7



Snow

217

22

17

2



River

2

0

0

0



Unknown

0

0

0

0



Ascent or Descent

(River crossing not included)

Ascent

268

16

36

5



Descent 

272

9

35

4



Unknown

43

1

2

0



Immediate Cause

Fall or slip on rock

210

4

29

3



Failure of piton

12

0

1

0



Falling rock or object

58

0

6

4



Failure of rappel

32

0

2

0



Slip on snow or ice

92

10

4

0



Fall into crevasse

13

4

1

0



Loss of control in voluntary glissade

29

0

4

2



Avalanche 

48

7

2

0



Lightning

16

0

0

0



Stuck rope

5

0

0

0



Skiing

2

0

0

0



Faulty use of crampon

5

0

0

0



Fall in river

2

0

0

0



Exposure and/or exhaustion 

34

1

7

0



Heat prostration 

1

0

1

0



Illness, medical

4

0

1

0



Exceeding abilities

(inexperience)

14

0

0

0



Miscellaneous (incl Frostbite) 

8

0

14

0



Contributory Causes

Climbing unroped

149

5

18

3



Climbing alone

39

1

8

2



Attempt to exceed abilities (inexperienced)

77

7

24

0



Darkness

6

0

2

0



Inadequate equipment

31

0

4

0



Old rope

3

0

0

0



Piton failure

13

1

0

0



Bad weather

7

0

4

0





1951-62

U.S.

1959-62

CAN.

U.S.

1963

CAN.



Exposure and/or exhaustion

8

0

2

3



Party separated

9

0

3

0



Age of Individuals



Boys 

6

0

0

0



Under 15

18

0

4

0



15-20 years

187

4

30

2



“Young or college age”

11

0

1

1



21-25 

129

3

11

0



26-30 

59

4

5

4



31-35 

41

1

8

0



Over 35 

55

8

10

1



Unknown 

59

6

3

1



Unaffiliated with climbing groups



Unaffiliated 

132

4

39

4



Not stated 

209

1

11

1



Member of mountaineering club .

243

21

23

4



Estimate of experience



None or little

290

9

40

4



Moderate 

158

9

17

3



Experienced

63

7

11

2



Unknown

72

1

5

0



Month of Year



January

13

0

1

0



February

31

0

4

0



March

24

0

0

0



April

36

0

2

1



May 

44

0

9

0



June 

63

1

6

1



July 

132

17

18

2



August 

106

8

13

4



September 

56

0

6

1



October 

23

0

6

0



November 

32

0

3

0



December 

11

0

5

0



Not specified

2

0

0

0