Excerpted from "Boulder, A Sight to Behold: Guidebook" (1976) by Donald D. Runnells,
modified by Sheila Murphy.
Graphics adapted from Runnells by Erica J. Keefe.
Simplified and generalized cross section east-west across the Boulder
area. The thicknesses are not to scale, and the vertical scale is
exagerated for emphasis.
Thank You!
BASIN was a community project which benefitted from over 1000 hours of
public volunteer time. BASIN was highlighted by the US EPA
in a national case study in its 2001 handbook Delivering Timely Environmental Information to Your Community.
Thank you to all volunteers, and especially to the late Jim Waterman, BASIN Project Coordinator!
