This document contains descriptions of various rocks and geological features found by the author in field studies. It includes 3 sentences summarizing each rock or location: - Rhyolite found in Yosemite National Park surrounded by many rocks and trees. - Shale found near a stream in Yosemite National Park surrounded by twigs, rocks, and trees. - Andesite rock outside West Hills College found between bushes and dirt with unusual yellow and white colors. - Phyllite found in Bass Lake surrounded by tall trees and rocks by a river. - Pegmatite in Yosemite National Park is black, gray, and white with striped patterns and surrounded by various sized