Butterflies of Portage County
- Presents photos and species accounts of butterflies found within the county.
- http://www.butterfliesandmoths.org/map?dc=5462&_dcc=1&si=36

Portage County Environmental Data
- Index to program areas, educational information, newsletters and events available through Ohio State University Extension.
- http://portage.osu.edu/

Portage County Soil And Water Conservation District
- Agency responsible for protecting the natural resources within the county provides local leadership, education and technical assistance.
- http://www.portageswcd.org/

Water Resources of Portage County
- Factsheet providing information on water resources and drinking-water quality in the county.
- http://ohioline.osu.edu/aex-fact/0480_67.html