Endorsed by GSA Quaternary Geology and Geomorphology Division.
Stephen M. Keller, Colorado Geological Survey, skeller@mines.edu; Kassandra O. Lindsey, Colorado
Geological Survey, kolindsey@mines.edu; Alexander E. Marr, Colorado Geological Survey,
alexmarr131@gmail.com; Matthew L. Morgan, Colorado Geological Survey, mmorgan@mines.edu; Michael K.
O’Keeffe, Colorado Geological Survey, okeeffe@mines.edu.
Description: This field trip will examine Pleistocene-Holocene exposures of alluvium,
eolian sand, and loess and will be based on 17 geologic quadrangle maps done by the Colorado Geological
Survey since 2015. The lithology, geochronology, hydrogeology, geologic hazards, and mineral resources
of the deposits will be presented.