CHEYENNE, Wyo. — A search team found the body of Senator Mark Udall’s brother in western Wyoming’s Wind River Range after he did not return from a solo backpacking trip, Udall’s family said.
James ‘‘Randy’’ Udall, 61, had left June 20 for the weeklong trek, setting off from a trailhead 10 miles northwest of Pinedale. He was due back a week ago.
An aerial team spotted Udall’s body on its side, in open, rolling terrain Wednesday afternoon, Sublette County sheriff’s officials said. The body was taken to Pinedale.
The office of Mark Udall, a Democrat of Colorado, released a statement from the family saying that although an autopsy is forthcoming, it appears his brother died of natural causes.
‘‘Randy left this earth doing what he loved most: hiking in his most favorite mountain range,’’ the family said.
He had indicated on a sign-in sheet at the trailhead that he planned to head for the scenic Titcomb Basin.
Randy Udall was an environmentalist and energy efficiency-advocate whose family has been active in politics. Senator Tom Udall of New Mexico is a cousin. His uncle, Stewart Udall, was interior secretary in the 1960s.