An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the
United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Google Analytics Dashboard for GSMDATUM and GSPDATUM, programs for DOS microcomputers to convert data in GSMAP or GSPOST format between the NAD27 and NAD 83 coordinate systems
GSMDATUM and GSPDATUM, programs for DOS microcomputers to convert data in GSMAP or GSPOST format between the NAD27 and NAD 83 coordinate systems