Southern Utah law enforcement officers are searching for a Panguitch, Garfield County, woman who mysteriously disappeared in Richfield about a week ago, apparently during a return trip from Colorado.

Beulah Lyle, 53, was reported missing Aug. 28 by her husband Jim Lyle, a Panguitch businessman. He told authorities he expected her to return from a trip to Silverton, Colo., where she had gone to visit a sister-in-law.The investigation revealed that she had stopped to gas her vehicle at a service station in Moab Aug. 28. About three hours later, it was learned that the 1972 white and cream two-door Cadillac sedan had been located and tagged as an abandoned car in Richfield.

"We've got a lot of people working on it," a dispatcher at the Sevier County sheriff's office said Friday. Authorities have been looking all week for clues to Lyle's disappearance and have not found evidence of foul play.

Neither her purse nor her car keys were found in the vehicle. Possible malfunction of the car was ruled out when it readily started with a second set of keys provided by her son. The car was found on the west side of US-89 in the south sector of the city.

Lyle was reported to have left Silverton at 8 a.m. Aug. 27 with the intent to visit friends in Grand Junction and Moab. She had also intended to take a hike in Capitol Reef National Park before she returned.

Authorities appealed to the public for any information that would lead to finding Lyle. She was described as 5 feet 8 inches tall, 190 pounds, with black hair and brown eyes. She was wearing a black jacket, a flower-print blouse and black pants.