Click on an image to see a larger version.
A railroad and a state highway share the Feather River route, but must take opposite sides of the steep canyon -- and trade places three times.
North Fork Feather River, near Pulga, CA (1987).
The west side of the San Joaquin Valley has an interstate highway, several canals, pipelines and powerlines all running parallel.
junction of highway 132 and Interstate 580, south of Tracy, CA (1980).