Welcome to the BETA Version of Spec-X

This is our initial release of the Spec-X website to give people access to our specification information and to provide a way to get feedback. This website is UNDER CONSTRUCTION and more functionality will be added to future releases!

Spec-X is a guide for exploring information about The National Map data products, including information about the symbols and labels used on US Topo maps, data dictionaries for the different map layers created by The National Map, and much more. Begin exploring the information behind the maps by selecting the tabs above for queries, reports, and more.

If you have helpful suggestions or comments for our future release, please send them to: tnmstandardsfeedback@usgs.gov