Climate of Montana
- Narrative written by the State Climatologists and published by the National Climatic Data Center.
- http://www.wrcc.dri.edu/narratives/MONTANA.htm

Montana Wildlife Federation
- Advocacy organization for big game and non-game species, habitat management using hunting, fishing, water quality, and public access issues.
- http://www.montanawildlife.com/

Montana Trout
- A nonprofit organization that procures and administer funds garnered from grants and donations into wild trout habitat restoration projects.
- http://www.montanatrout.org/

Montana Animal Field Guide
- Information on identification, habitat, ecology, reproduction, range, and distribution of Montana's animal species, with references and photographs.
- http://fwp.state.mt.us/fieldguide/

Custer National Forest
- National grasslands, ranger districts, forest history, buy books, maps.
- http://gorp.away.com/gorp/resource/US_National_Forest/mt_custe.htm

Montana Water Center
- Information and research on a wide range of water-related topics, including drought and climate, fisheries health, water supply and wastewater systems, and water quality.
- http://water.montana.edu/

Montana Natural Heritage Program
- Information on the state's native species and habitats, emphasizing those of conservation concern.
- http://nhp.nris.state.mt.us/

Montana Tree Identification
- 7th grade science students have created a web site to help residents identify the trees in their area. Includes classification keys and contact information.
- http://home.centurytel.net/sha/trees.html

Montanans Against Toxic Burning
- Organization opposed to a proposal to burn scrap tires in a cement kiln in Gallatin County. Information about concerns regarding air quality and health, as well as about other uses for old tires.
- http://www.notoxicburning.org

Montana Natural Resource Information System
- Central source for information and technical assistance from the state Natural Heritage Program (biological diversity data), Water Information System (data on water resources, riparian areas, water rights, and other topics), and Geographic Information Sys
- http://nris.state.mt.us/

The Montana Chapter of the Society for Conservation Biology
- Current projects and chapter members.
- http://www.forestry.umt.edu/organizations/mtscb

Montana Association of Conservation Districts
- Organization for units of local government designed to help citizens conserve their soil, water, flora and fauna, and other renewable natural resources. Describes their history and purpose, provides informational links and listings/links for county conser
- http://www.macdnet.org/

Teller Wildlife Refuge
- A site in western Montana for environmental education, guest accommodations, land and water conservation, and several annual events. It is a private, non-profit organization.
- http://www.tellerwildlife.org/

Montana Land Reliance
- A non-profit land trust that preserves and conserves private lands through conservation easements.
- http://www.mtlandreliance.org/