Arizona Open land Trust    www.aolt.org

Arizona State Land Department   http://www.land.state.az.us.divisions/natural.htm

Empire Ranch Foundation    http://www.empireranchfoundation.org

Malpai Borderlands Group   http://www.malpaiborderlandsgroup.org

Sonoita Crossroads Community Forum   http://www.sonoitacrossroads.org

Sonoita Valley Planning Partnership   http://www.hanksville.org/crossroads/SVPP.html

The Land Trust Alliance   www.lta.org

The Nature Conservancy   www.nature.org

The Sonoran Institute   www.sonoran.org

Trust For Public Land   www.tpl.org

USDA Natural Resource Conservation Service (NRCS)  www.az.nrcs.usda.gov