Texas Cooperative Wildlife Collection list of species found in the county.

Information about and pictures of all the known species of butterflies in the county.

Current and historical information about Hartley County.

Lists contact information for county and district court offices and includes a map and demographic information.

Population, demographic, and housing information from the 1990 census. Link to Tiger map of the county.

Lists politicians who lived or died in the county.

Provides names and addresses of county public officials and departments.