Joe Cain, wearing an orange long-sleeve shirt labeled “SURVEY CREW,” stands on a grassy hill overlooking a construction site and forested mountains under a clear blue sky. As he sets up a geophysical survey line at the dam site in Colorado, various machinery and structures are visible in the background.

Joe Cain, wearing an orange long-sleeve shirt labeled "SURVEY CREW," stands on a grassy hill overlooking a construction site and forested mountains under a clear blue sky. As he sets up a geophysical survey line at the dam site in Colorado, various machinery and structures are visible in the background.

Joe Cain, wearing an orange long-sleeve shirt labeled “SURVEY CREW,” stands on a grassy hill overlooking a construction site and forested mountains under a clear blue sky. As he sets up a geophysical survey line at the dam site in Colorado, various machinery and structures are visible in the background.