AZ Wildlife & Conservation
www.azgfd,com/wildlife

Coalition for Sonoran Desert Protection
www.sonorandesert.org/

Friends of Saguaro National Park 
www.friendsofsaguaro.org/hikestrails

Gates Pass Area Neighborhood Association
www.gpana.info/

iNaturalist
www.iNaturalist.com

Tucson Audubon Society
www.tucsonaudubon.org/

Tucson Historic Preservation Foundation
www.preservetucson.org/

US Fish & Wildlife Service
www.fws.gov