The Pima County Board of Supervisors has approved a contract with New Mexico-based Ortega National Parks to operate Colossal Cave Mountain Park. The company, doing business in Arizona as Colossal Cave ...

Richard Milbauer, top, and Heather Shearer use night-vision modified video cameras to record the Haunted Historians tour of Colossal Cave and the park grounds east of Tucson. Chloe Flanders, left, and ...

The leaseholder for Colossal Cave Mountain Park has updated its procedures and instituted personnel changes after an anonymous letter to the Pima County Board of Supervisors alleged multiple ...

Looking for someplace to beat the heat this summer? Visit one of the many colossal caves around the Lower 48 states, where you can chill, enjoy underground splendor, give the kids a thrill, and on the ...