Mount Haynes el. 8218 feet (2,504.8 m) is a prominent peak adjacent to the Madison River

Madison River

The Madison River is a headwater tributary of the Missouri River, approximately 183 miles long, in Wyoming and Montana. Its confluence with the Jefferson and Gallatin rivers near Three Forks, Montana form the Missouri River....

 in Yellowstone National Park

Yellowstone National Park

Yellowstone National Park, established by the U.S. Congress and signed into law by President Ulysses S. Grant on March 1, 1872, is a national park located primarily in the U.S. state of Wyoming, although it also extends into Montana and Idaho...

. The peak was named by then Yellowstone superintendent Horace Albright to honor Frank Jay Haynes

Frank Jay Haynes

Frank Jay Haynes , known as F. Jay or the Professor, to almost all that knew him, was a professional photographer, publisher and entrepreneur from Minnesota who played a major role in documenting through photographs, the settlement and early history of the great Northwest...

 (1853–1921), the first official photographer of the park. Prior to being named Mount Haynes, the peak was unofficially called Mount Burley for D. E. Burley of the Union Pacific Railroad

Union Pacific Railroad

The Union Pacific Railroad , headquartered in Omaha, Nebraska, is the largest railroad network in the United States. James R. Young is president, CEO and Chairman....

. Today there is an interpretive overlook along the Madison River just opposite the peak.