Mount McDowell, Red sandstone summit in Salt River Pima-Maricopa Reservation, Arizona.

Mount McDowell, also called Red Mountain, is a bare summit of reddish-brown sandstone conglomerate on the Salt River Pima-Maricopa Indian Reservation north of Mesa, Arizona. It rises to 2,832 feet (863 m), with stepped ledges on the left, a blunt vertical crag at the top, and jagged outcrops descending to the right. A deep cleft on its western side is known as Gunsight.

Mount McDowell is named after General Irvin McDowell, a Union officer in the Civil War. The mountain lies on the Salt River Pima-Maricopa Indian Reservation, and since the early 1980s it has been declared off-limits to hikers, climbers and photographers because of vandalism.

The mountain carries two Indigenous names: S-wegĭ Doʼag in O'odham and Wi:kawatha in Yavapai. It is also called FireRock for the red sandstone conglomerate that glows at sunset. The Salt River Pima-Maricopa Indian Reservation has barred hikers, climbers and photographers since the early 1980s because of vandalism.

The mountain is clearly visible from several spots along the Salt River, where you can get a good look at its red stone faces. Bringing binoculars helps you notice the details of the rock surface from those viewing areas.

The western face of the mountain has a natural cleft called Gunsight, which resembles the notch of a rifle sight. This feature is easy to spot when looking at the mountain from the riverbank viewing areas.