Repeat photograph of the San Pedro River valley, near St. David, AZ.
By Southwest Biological Science Center
1994 (approx.)
Detailed Description
Repeat photograph of the San Pedro River valley, near St. David, southern AZ. This photo was taken in 1994 by Dr. Robert Webb, USGS, as a repeat photograph of the 1981 Roskruge image and 1962 J.R. Hastings image. The image series is from the SBSC's Southwest Repeat Photography Collection, stake (camera point) s0151.
Sources/Usage
Public Domain.