The TCEQ U.S. Geological Survey (USGS) Topographic Map Viewer was
designed to display the 7.5-Minute USGS Topographic Maps for the
State of Texas using an Internet browser. With this viewer, not
only can you view and print USGS Topographic Maps, but you can also
determine the exact Latitude and Longitude of any feature visible
on the topographic maps. These coordinates are automatically
converted to the North American Datum of 1983 (NAD83). Several
reference map layers such as counties, roads, cities, and rivers
have been provided to help guide you to your area of interest. In
addition, the 7.5-minute quadrangle index as well as the quarter
quad index have been included to help determine the names and
numbers for specific quads.
- Help - Read this
first. This help page explains how to use the tools
available in the viewer. It can also be accessed from the viewer
itself.
- Go
to the Map Viewer - Best viewed using Internet Explorer 5.5 and
above.
- Metadata - This document,
mainly intended for those who use GIS (Geographic Information
Systems), provides more detailed information about the DRGs
(Digital Raster Graphics), the GIS term for "Digital USGS
Topographic Maps".
- Contact Us - You may e-mail the Web/GIS Development Team at gismail@tceq.state.tx.us
