The man, who is in his early 20s, fell near a geyser on Tuesday afternoon.
Search efforts for an Oregon man who fell into a hot spring at Yellowstone National Park have been suspended after authorities reported that there were no remains left to recover.
Colin Nathaniel Scott, 23, of Portland, was with his sister, Sable Scott, when he left the boardwalk near Pork Chop Geyser, park officials said in a statement.
“They were able to recover a few personal effects,” park spokeswoman Charissa Reid told the Associated Press on Wednesday. “There were no remains left to recover.”
Search parties were still looking for Scott a day after he had fallen near the Porkchop Geyser at about 2:30 p.m. Tuesday, officials said. His sister reported Scott's fall to authorities, authorities said.
It was not immediately clear what led to his fall about 225 yards away from the path in Norris Geyser Basin, the park said.
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A witness reported seeing the man fall after he left the boardwalk, according to the Bozeman Daily Chronicle.
"Boardwalks and trails protect you and preserve delicate thermal formations. Scalding water underlies most of the thin, breakable crust in thermal areas," the park warns on its website. "Pools may be near or above the boiling point of water and can cause severe or fatal burns."
Though described as a "gently rolling hot spring," very few features at Norris Geyser Basin are cooler than 199 degrees. The park's hottest springs have reached as high as 459 degrees.
“We extend our sympathy to the Scott family,” Yellowstone Superintendent Dan Wenk said in a statement Wednesday. “This tragic event must remind all of us to follow the regulations and stay on boardwalks when visiting Yellowstone’s geyser basins.”
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On Saturday a 13-year-old boy was flown to a nearby hospital after he fell into a hot spring at the Upper Geyser Basin, according to The Chronicle. He suffered burns to his foot and ankle.
If the man has died, he would be the second fatality at the park in three weeks, after a 47-year-old woman was fatally struck by a car in May.
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