Butterflies of Hartley County, Texas - Information about and pictures of all the known species of butterflies in the county. www.npwrc.usgs.gov/resource/DISTR/LEPID/BFLYUSA/chklist/states/counties/tx_205.htm
Handbook of Texas Online - Current and historical information about Hartley County. www.tsha.utexas.edu/handbook/online/articles/view/HH/hch9.html
Hartley County - Lists contact information for county and district court offices and includes a map and demographic information. www.co.hartley.tx.us
Hartley County QuickFacts from the US Census Bureau - Population, demographic, and housing information from the 1990 census. Link to Tiger map of the county. quickfacts.census.gov/cgi-bin/county?cnty=48205
YB Lost - Hartley County, Texas - Provides names and addresses of county public officials and departments. members.tripod.com/proagency/hartleycounty.html
