For many early visitors the experience of seeing the Yosemite and Hetch Hetchy Valleys was like viewing a stereoscopic slide. As you will see in the activity below many of the features of the two valleys were remarkably similar.
To Start You Thinking -
Each item in the following list presents you with a pair of images for your comparison - one from Hetch Hetchy Valley, one from Yosemite Valley. Prepare a chart for each item like the one started for you below comparing two of Albert Bierstadt's paintings. Carefully record the similarities and differences that you observe.