Land Trust Alliance, Find A Land Trust
A listing by state of Land Trust Alliance member land trusts. Accredited Land Trusts are indicated by a modified infinity symbol.
http://findalandtrust.org/
Land Trust Alliance, Land Trust Standards And Practices
Information regarding the Land Trust Alliance Standards and Practices.
https://www.landtrustalliance.org/topics/land-trust-standards-and-practices
Guidelines For Privately Protected Areas International Union For Conservation of Nature (IUCN)
https://portals.iucn.org/library/node/47916
International Union For Conservation of Nature (IUCN), Green List Standard
Information about the IUCN’s standard for effective land conservation.
https://www.iucn.org/theme/protected-areas/our-work/iucn-green-list-protected-and-conserved-areas/global-standard