Saguaro National Park Cactus Forest Loop Drive vicinity
Brown anole who fell in love with a fairy!
It pulled some dry grass into a den on the bank of a swamp and then swam over to a nearby beaver lodge (active - I've seen the beaver). It climbed through the piled up branches, at one point seeming to roll or rub its head against the side of the lodge. After perhaps twenty minutes, it swam back to the den and went inside.