James Hager/Robert Harding
The GPS tracking the wolf showed he covered 20 air miles a day as he traveled through California's Shasta and Lassen counties.
Wildlife officials say California's lone wolf has returned to Oregon.
A GPS device tracking the movements of the gray wolf known as OR-7 shows he left California and crossed into Oregon around noon Thursday.
An official with the Oregon Department of Fish and Wildlife told the San Francisco Chronicle that the wolf, also known as Journey, was in Oregon's Jackson County Friday night.
Wildlife officials believe the wolf returned to Oregon after a futile search to find a mate in California.
When he did enter California in late December, officials said he was the first wolf to roam anywhere in state since 1924.
During his journey, OR-7 impressed wildlife experts with his endurance.
The device tracking his movements shows he covered 20 air miles a day as he traveled through California's Shasta and Lassen counties before heading back to Oregon.