An experienced rafter who fell overboard into the Colorado River was pulled from the water but died at the scene.

About 2:30 p.m. Monday, Grand County emergency personnel responded to the Colorado River at Pyrite Rapids in the Gore Canyon outside Kremmling, according to the Grand County Sheriff’s Office.

A group of rafters had set off from the confluence of the Blue and Colorado rivers, the sheriff’s office said in a news release. The 38-year-old man, an experienced rafter who was wearing a helmet and flotation device, fell overboard and was in the water for an unknown time before members of his group located him.

Emergency responders used Union Pacific Railroad track to access the remote location.