College of the Redwoods GEOLOGY 15 Lecture 18 10/23/2013 Web Site
Field Trip to Hookton Slough
Here is activity 8 in pdf format. (3.5 MB)
Here is the Natural Resources Conservation Service Field Book for Describing and Sampling Soils in pdf format. (2 MB)
Here is a Wentworth Particle Size Class chart pdf format. (0.07 MB)