Butterflies of Armstrong County. - Information about and pictures of all the known species of butterflies in the county. - http://www.butterfliesandmoths.org/map?dc=1427&_dcc=1&si=44
Capitol Impact: Armstrong County - Economic, educational, and political data. - http://www.capitolimpact.com/gw/cntydetail.asp?state=tx&stfips=48&stname=Texas&fips=48011
Amphibians and Reptiles in Armstrong County - Texas Cooperative Wildlife Collection list of species found in the county - http://wfscnet.tamu.edu/tcwc/checklist/armst006.htm