Created 23-Apr-14
86 photos

Many of the hills and cliffs of the Pacific Northwest are not of rock but of sand, gravel, clay or some mixture or layering of these. This is a result of ice ages. Some of these formations display some interesting patterns. The cliffs are all constantly eroding, and sometimes collapse catastrophically.
Gravel Cliff With VegetationSand Cliff With Swallows' NestsGravel Clif Over the Skagit RiverUndermined Tree TrunkQuarry WallShoreline CliffRed Gravel CliffGravel Cliff CracksGravel Cliff and Broken RootInstant RiverSand, Water, and CloudsGravel Cliff and Disappearing TreeClay Cliffs, Whidbey Island

Categories & Keywords
Subcategory Detail:
Keywords:Ice Age, clay, cliff, gravel, sand