Photos by Karen Vaughan unless otherwise noted - please feel free to use these images for education purposes but contact me for all other uses.
Spring 2016 - Introduction to Soil Science Lab
2016 National Collegiate Soil Judging Competition hosted by Kansas State University
Soil Judging 'mock' regional contest, Cal Poly - photos by Alison Gillum (Blue Seal Photography)
Geoscience for 4th graders, NRES department, Cal Poly
California FFA Land Judging soil profiles - 2014 & 2015
Earth, Soil, and Water Conservation Club - soil dessert contest, Cal Poly
Photos by Natalie Rossington & Karen Vaughan