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Reported Mountaineering Accidents, Table III

TABLE III



1951-89

1959-89

1990

1990





USA

CAN.

USA

CAN.



Terrain



Rock

2727

330

93

13



Snow

1744

262

38

8



Ice

130

56

6

4



River

12

3

0

0



Unknown

19

6

2

0



Ascent or Descent



Ascent

2433

341

80

13



Descent

1552

232

53

11



Unknown

237

45

3

1



Immediate Cause



Fall or slip on rock

1764

163

73

12



Slip on snow or ice

615

123

23

6



Falling rock or object

387

99

11

2



Exceeding abilities

305

27

7

0



Avalanche

227

93

3

0



Exposure

193

12

3

0



Illness1

191

14

3

3



Stranded

169

38

7

0



Failure of Rappel

141

21

1

0



Loss of control/voluntary glissade

139

12

7

1



Fall into crevasse/moat

104

33

2

1



Failure to follow route

88

18

4

0



Piton pulled out

69

12

0

0



Faulty use of crampons

49

4

1

0



Nut/chock pulled out

43

3

5

0



Lightning

36

5

0

0



Skiing

34

9

1

0



Ascending too fast

32

0

0

0



Equipment failure

4

2

1

0



Other2

79

11

10

0



Unknown

48

8

0

0



Contributory Causes



Climbing unroped

772

103

16

15



Exceeding abilities

733

126

17

8



Inadequate equipment

451

54

10

1



Weather

289

31

5

2



Placed no/inadequate protection

280

29

33

5



Climbing alone

260

42

6

5



No hard hat

131

18

24

0



Nut/chock pulled out

121

8

12

2



Darkness

96

12

3

0



Piton pulled out

78

10

1

0



Party separated

77

15

5

0





1951-89

USA

1959-89

1990

1990







CAN.

USA

CAN.



Contributory Causes (cont.)



Poor position

51

8

11

0



Failure to test holds

49

13

2

0



Exposure

48

9

2

0



Inadequate belay

39

5

7

0



Failed to follow directions

42

1

3

2



Illness1

26

4

1

0



Equipment failure

6

2

0

1



Other2

138

30

14

11



Age of Individuals



Under 15

97

11

2

0



15-20

1037

176

12

5



21-25

1190

204

32

2



26-30

767

152

28

9



31-35

413

76

28

0



36-50

531

83

36

2



Over 50

77

11

7

1



Unknown

697

300

25

31



Experience Level



None/Little

1309

233

24

7



Moderate (1 to 3 years)

1160

248

27

12



Experienced

991

274

36

5



Unknown

1029

195

54

1



Month of Year



January

140

7

3

0



February

149

30

4

1



March

203

33

5

1



April

256

23

11

1



May

526

36

16

1



June

647

38

26

1



July

756

182

25

7



August

660

184

19

9



September

944

35

16

2



October

259

27

3

0



November

127

3

6

0



December

49

14

2

2



Type of Injury/Illness (Data since 1984)



Fracture

391

43

67

15



Laceration

178

14

37

5



Abrasion

106

8

10

4



Bruise

94

11

11

5



Sprain/strain

95

10

11

0



Concussion

45

6

10

0



Frostbite

38

0

7

3



Hypothermia

36

5

2

5





1951-89

1959-89

1990

1990





USA

CAN.

USA

CAN.



Dislocation

26

3

8

0



Puncture

15

2

0

0



HAPE

31

0

3

0



Acute Mountain Sickness

9

0

1

0



CE

4

0

1

0



Other

90

19

12

0



None

22

3

0

0



2These include: a) miscommunication several); b) inadequate instruction and supervision; c) ice ax strap problems; d) distraction; e) inappropriate technique.