Ahighly skilled practitioner, watkins images of yosemite tended to focus on:

Carleton Watkins was an American photographer of the 19th century. He was the best known and most influential photographer who photographed the Yosemite Valley. A highly skilled practitioner, Watkins images of Yosemite tended to focus on scenic views of the Yosemite that were attractive to tourists.

Earthquake fault lines. map above represent