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POPULAR SCIENCE MONTHLY
Fig. 3. Hanging Valley in Grenville Channel, Inside Passage. Waterfall of stream draining the broad, U-shaped valley seen near water in right-hand half of picture. Photograph by Lawrence Martin.
feature a view up or down such a valley is not usually very extensive, being cut off by the projecting spurs around which the stream swings. The absence of this feature in those Alaskan valleys where there is a
Fig. 4 Waterfall on the Very Face of the Rock Lip of a Hanging Valley behind Sara Island, Inside Passage. Photograph by Lawrence Martin.
