Fig. 2. View of Trap Dike, May, 2011


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Figure 2. Trap Dike, on the edge of Mount Colden, is gully formed by preferential erosion of a basaltic dike. It has experienced repeated debris flows. Several months prior to Hurricane Irene, the debris cone at the base of Trap Dike was thickly vegetated. After the hurricane, a new slide scar formed, and the debris flow scoured vegetation from its path. The new slide is whiter in color because fresh bedrock was exposed. (Photo by Carl Heilman II. Used with permission.)

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