Police across Northern California and Southern Oregon are looking for a Yreka man who got on a bus Thursday and hasn't come home yet.

Police across Northern California and Southern Oregon are looking for a Yreka man who got on a bus Thursday and hasn't come home yet.

Darwin Lee Ehrlich, 75, left his home at Cove Mobile Villa south of Yreka at about 10 a.m. Thursday, telling his wife he planned to take the Stage, a local commuter bus, into Yreka to go shopping, Siskiyou County Sheriff's Department spokeswoman Susan Gravenkamp said Friday.

When he hadn't returned by 11 p.m. Thursday, his wife notified authorities. She told deputies Ehrlich uses a walker and cannot go far without it, but she had found the walker near the back door of their home. She also said the couple had talked about moving to Grants Pass and her husband might have headed there. However, he hadn't taken his medication or a change of clothes with him.

The Stage bus driver confirmed he had picked up a man believed to be Ehrlich at 10:15 a.m. Thursday at the mobile home park. The man had ridden the bus to Weed, the driver told police.

Ehrlich's wife told police she and her husband have taken the local bus to Weed to connect with Greyhound for regional travel in the past. Gravenkamp said investigators planned to track whether Ehrlich had made the Greyhound connection and where he might be headed.

Ehrlich was last seen wearing a blue shirt with a bear on the front, tan pants and black slip-on shoes. He is 6 feet tall and weighs about 185 pounds. He has gray hair and blue eyes.

Investigators ask anyone who may have seen him or who has any information on his whereabouts to call the sheriff's department at 530-841-2900.