Plot is located at the Rock Ranch in the horse pasture. Plot is located near the NE corner of the pasture located west of the barn and house. Plot (NE corner) is ~10 m from corner of pasture fence. The plot site was chosen because of the abundance of Hesperevax caulescens.; Horse pasture with a few horses. Butte Community College plans to expand the solar array to just east of plot on college property.