The range of the GPS coordinates of the United States of America are (approximately):
Latitude: Between 24 and 49.
Longitude: Between -67 and -125.
Examples:
New York City: 40.714353,-74.005973
Los Angeles: 34.052234,-118.243685
Miami: 25.788969,-80.226439
San Antonio: 29.424122,-98.493628
Seattle: 47.60621,-122.332071