Roof Butte, Mountain summit in Navajo Nation, Arizona, USA

Roof Butte is the highest peak of the Chuska Mountains, which run north-northwest across the Arizona–New Mexico border on Navajo Nation land in Apache County, Arizona. It reaches 9,787 feet (2,983 m) and is visible for miles around. Two funnel-shaped volcanic explosion pipes formed its flattish summit, and a staffed lookout tower stands on top.

The mountain formed through volcanic activity, with two funnel-shaped explosion pipes and a lava dome creating its distinctive structure. This geological history shaped the landscape and remains visible in the peak's composition today.

The Navajo name Adáá dikʼá means "Roof shaped mountain on the run", describing the flat summit seen from the surrounding plains. The peak lies within Navajo Nation, near the New Mexico line, and the English word butte refers to a witness mountain left standing above eroded land.

Access to the summit is provided by Indian Route 68, which leads directly to the peak. A lookout tower at the top offers vantage points for viewing the landscape stretching across the Arizona-New Mexico border region.

The summit has an unusually flat surface created by volcanic formations underneath. This distinctive shape makes it visible from considerable distances and contributes to its recognizable appearance across the landscape.