Great River Greening
- A nonprofit, community-based organization that restores and maintains urban natural resources throughout the Twin Cities river valleys in partnership with public and private landowners and citizen volunteers.
- http://www.greatrivergreening.org/

Minnesota Land Trust
- Non-profit organization protecting open space in Minnesota. Provides news and organizational information, resources for landowners, internship opportunities, and links.
- http://www.mnland.org/