Avalanche Control-Cornice Control

File — Box: 1, Folder: 12

Staff Only

Scope and Contents

P0393n01_12_001-003: Explosive detonating on Bald Mountain Cornice
P0393n01_12_004: Cornice control
P0393n01_12_005: Avalanche fence
P0393n01_12_006-008: Close-up view of Baldy Ridge, picture taken by Anes Harrison, March 1970
P0393n01_12_009: Close-up view of Baldy Ridge, where cornice did not develop. Notice Scouring effect on lee side indicating a wind funnel developed, picture taken by Anes Harrison, March 1970
P0393n01_12_010: Cornice control fences on ridge
P0393n01_12_011: Arming explosive charge with electric caps.
P0393n01_12_011a: Explosive charge detonating in snow.
P0393n01_12_012: Rigging charges for cornice control while on belay, picture taken by Monty Atwater, 1948
P0393n01_12_013: Setting of charge with electric detonator, picture taken by Monty Atwater, 1948
P0393n01_12_014: On belay - setting charges in P-ridge cornice, picture taken by Monty Atwater, 1948
P0393n01_12_015-18: Cornice control on Baldy.
P0393n01_12_019-22: Fracture line at snow defense structure.
P0393n01_12_023-26: Cornice fencing in summer.

Dates

1930-1974

Conditions Governing Access

Twenty-four hour advanced notice encouraged. Materials must be used on-site. Access to parts of this collection may be restricted under provisions of state or federal law.