Grand Canyon Resort Corporation
- Offering hiking, ATV and helicopter tours of the Grand Canyon, guided and narrated van tours of Diamond Creek, white-water rafting excursions, and trophy game hunting on the Hualapai Indian Reservation.
- http://www.grandcanyonresort.com/

Grand Canyon Caverns
- Natural caverns with limestone walls formed in prehistoric times by an inland sea. Open to the public for more than half a century. Provides history, events, photographs and contact information.
- http://www.gccaverns.com/