Amphibians and Reptiles in Pecos County: Texas Cooperative Wildlife Collection list of species found in the county.
Handbook of Texas Online: Current and historical information about Pecos County.
Pecos County: Official County web site.
Santa Rosa Spring: History of the spring, photos and description of current threat of saltwater flooding from a former water well, and request for funding to cap the well.
The Political Graveyard: Pecos County, Tex.: Information about politicians that lived or died in the county.