Extent of the United State's survey network in 1951.
High resolution available. (1.11MB, 1540x1014).
With the NOAA 200th Celebration coming to a close at the end of 2007, maintenance of this Web site ceased. Updates to the site are no longer being made.
Extent of the United State's survey network in 1951.
High resolution available. (1.11MB, 1540x1014).