A mystery on the Colorado River, and this morning, still no answers.

Mesa County Search and Rescue Teams were called out to search the Colorado in between Debeque and Palisade Monday afternoon.

A passerby saw an empty raft with a cooler floating and called 911 just after 4 p.m.

Firefighters braved the current to get the raft, but after searching the river for about 25 miles they never found anyone.

It's a green raft with an orange cooler tied to it.

The Mesa County Sheriff's Office is asking anyone with any information on the raft to call them so they can figure out exactly what happened.