Lighthouse Peak, Rock formation in Palo Duro Canyon State Park, Texas, US.

Lighthouse Peak is a butte in Randall County, Texas, rising to 989 meters, about 67 meters above the surrounding terrain. It stands 16.7 km southwest of Lake Tanglewood, where the landscape is mostly grassland with some valleys. The climate is cold and arid, with July temperatures averaging 30 °C and January averaging 4 °C.

The formation developed over millions of years through erosion of ancient marine sediments that accumulated when the Texas Panhandle was covered by ocean. Geological processes gradually carved out the layered rock structure visible today.

The formation draws photographers and observers who come to capture how the rock face changes color throughout the day. People gather here to watch the light play across the layered stone surfaces at different times.

The trail to the formation is moderately challenging and requires plenty of water and an early morning start to avoid afternoon heat. The best time to visit is during cooler months when conditions on the exposed path are more comfortable.

Lighthouse Peak rises 989 metres above sea level in Randall County, Texas, about 2,200 km from Washington, D.C. The surrounding land is mostly grassland, with only about two people per square kilometre, and Lake Tanglewood lies 16.7 km to the north.