Debris Flow channel, Colorado (Vertical)
mass wasting, erosion
Talus, Colorado
mechanical weathering, fracture, alpine
Soil profile in grassland
chemical weathering, pedogenesis
Hogback Ridge
erosion, differential erosion, dip slope
Spheroidal weathering of Granite
chemical, mechanical, hydrolysis, granitic
Nonconformity, Colorado
unconformity
Granite intruding Gneiss
1.4 billion year old granite intruding 1.7 billion year old gneiss. (Image ID# ig-23)
Glacial Cirques, Colorado
erosion, abrasion