Spirit Leveling, 1905

Black & white photo of two USGS scientists conducting spirit leveling in the field

Detailed Description

USGS survey party spirit leveling near Colusa, Sacramento Valley, circa 1905. Photo by John Ryan, donated courtesy of Thomas E. Ryan.

Details

Image Dimensions: 287 x 358

Date Taken:

Location Taken: Colusa, CA, US

Credits

Photo by John Ryan, donated courtesy of Thomas E. Ryan.