Garren Kirk car

The family of Garren Kirk is asking for help finding his car, a gold Pontiac GRM.

(Courtesy of Whitney Altman)

Gerren Kirk, 31, of Milwaukie was expected back from a camping trip on Mount Hood Saturday.

UPDATE: Kirk's car was found Monday at the Frog Lake Campground near Mount Hood. The Wasco County Sheriff's Office is mounting a search Tuesday.

Clackamas County sheriff's deputies are trying to determine the hiking route of a Milwaukie man believed to be missing on Mount Hood.

"If we don't have a place to start, we can't search all of Mount Hood," Sgt. Nate Thompson, an agency spokesman, said Monday. "We just don't have the resources for that."

Gerren Kirk, 31, left home Wednesday with plans to camp on Mount Hood and return Saturday, but he didn't give details, his sister Whitney Altman said.

The family requests help from the public in finding his car so a search and rescue operation can get started.

Kirk drives a gold Pontiac GRM with a cracked windshield and a dent on the passenger-side rear bumper. It bears Oregon plates 554 GXR.

Altman said Kirk normally tells a few of his four siblings before going camping, but he told only one brother about the trip last week.

Other family members began worrying Friday and reported him as missing to the Clackamas County Sheriff's Office on Sunday.

It's unknown how much gear and food Kirk brought. He camped a few times a year, Altman said.

-- Carli Brosseau