Merrimac Butte[2] is a 5,627-foot (1,715-metre) sandstone summit located in Grand County, Utah, United States, about 12 miles northwest of the town of Moab.

The two buttes were named after the Monitor and Merrimack, two ironclad steamships known for clashing during the American Civil War.

Climbing Routes on Merrimac Butte[3] The first ascent was made September 22, 1985, by Jimmy Dunn, John Bouchard, Eric Bjornstad, and Lin Ottinger via "Hypercrack on the Anchor Chain.

"[4][5] "Without a Net" is the least difficult climb on Merrimac Butte and the first ascent of this route was made in April 1991 by Charlie Fowler and Sue Wint.

As part of a high desert region, it can experience wide daily temperature fluctuations.