Wichita Mountains Wildlife Refuge - The Eastern collared lizard (Crotaphytus collaris) is the state reptile of Oklahoma, where it is known as the “mountain boomer”. The origin of the name "mountain boomer"
Collared Lizard Care Sheet | Reptile Centre
Eastern Collared Lizard (Reptiles, Amphibians and Fish of the Kaibab National Forest) · iNaturalist
Eastern Collared Lizard - Colorado National Monument (U.S. National Park Service)
Husbandry and Captive Propagation of Eastern Collared Lizards (Crotaphytus collaris)