Sabino Canyon Tours - Offering narrated educational tram rides through the recreation area. Includes history and wildlife information. - http://www.sabinocanyon.com/
La Ruta de Sonora Ecotourism Association - Offering Sonoran Desert, Sea of Cortez, Colorado River, and other small-group ecotours. Find tour descriptions, schedules, pricing information, and travel tips. - http://www.laruta.org
Ecosouthwest.com - Ecotourism, educational and adventure tours throughout the Southwest, including cultural and historical tourism. Find details and contact information. - http://www.ecosouthwest.com/
Adventure Travel Vacations with Discovery Treks - Hiking, camping and family adventure tour packages in Sedona, the Grand Canyon, Glen Canyon, Lake Powell, and Havasu Falls. - http://www.discoverytreks.com
Arizona Coach Tours - Covers the Southwest and Mexico with guided tours in luxury buses. Also available for charter. - http://azcoachtours.com/