Merrimac Butte

Merrimac Butte is a sandstone formation in Grand County with vertical walls of Entrada Sandstone. The formation rises prominently from the surrounding landscape and creates a striking landmark visible across the desert terrain.

The formation was named after the USS Merrimack, an ironclad warship from the American Civil War. This naming reflects the historical significance of the vessel and its role in American military history.

The geological formation has provided numerous climbing routes, including the three-pitch 'Ascent Into the Maelstrom' rated at class 5.11.

The best time to visit is during spring and fall when conditions are most favorable. Visitors should be prepared for changing weather patterns typical of desert environments and plan accordingly.

The formation is known to climbers worldwide and features several established climbing routes with varying difficulty levels. Monitor Butte stands directly to the east and forms part of a connected rock landscape.

Location: Grand County

Elevation above the sea: 1,708 m

GPS coordinates: 38.66331,-109.73540

Latest update: December 14, 2025 14:43