Butterflies of Knox County - Presents photos and species accounts of butterflies found within the county. www.npwrc.usgs.gov/resource/distr/lepid/bflyusa/chklist/states/counties/oh_83.htm
Knox County Ground-Water Resources - Factsheet providing information on ground-water resources in the county. ohioline.osu.edu/aex-fact/0490_42.html
Knox Soil and Water Conservation District - Serves the residents of the county by promoting and demonstrating conservation of soil and water through education, technical assistance, financial support and public information. home.nfolink.com/~knoxswcd
Water Resources of Knox County - Factsheet providing information on water resources and drinking-water quality in the county. ohioline.osu.edu/aex-fact/0480_42.html
