The Harvey Pack

Pack Status: Active. Designated in 2023.

The Harvey Pack was confirmed in Lassen County in the summer of 2023 after CDFW received reports and photos from local livestock producers and USFS staff. The pack’s home range is primarily in western Lassen County, though it also extends into eastern Shasta County. 

In summer 2023, the pack included WHA05F (the breeding female), HAR01M (the breeding male), and two pups. WHA05F was born into the Whaleback Pack in 2021. The origin of HAR01M is currently unknown. At the end of 2023, only one of the two pups was still alive. In 2024, the Harvey Pack had a litter of eight pups. 

In January 2025, WHA05F was recollared, and HAR04F, HAR05F, HAR07M, and HAR11M (all from the 2024 litter) were all collared. A minimum of seven pups, four females and three males, were confirmed to be born into the pack in the spring.

Four wolves were collared in January 2026 during helicopter operations. During this effort, a fifth wolf, WHA05F, the breeding female of the pack, died after capture. HAR11M was recollared and HAR06F from the 2024 and HAR12F and HAR13F from the 2025 litter.

In early 2026, HAR04F dispersed into Oregon and HAR07M, following his capture, traveled through Lassen, Plumas, Modoc, and Siskiyou counties prior to dispersing into Oregon. Both have remained in Oregon. HAR11M also dispersed, entering the state of Nevada during a short foray through Lassen, Plumas, Sierra, and Placer counties. Upon his return to the historical pack range in February, the entire collared group of the pack traveled through the Warner Mountains in Modoc County and into Lake County Oregon. They returned to California and later Lassen County after ten days in Oregon.

In March, HAR10M, an uncollared male from the Harvey pack’s 2024 litter, was detected via genetic analysis in Mono County, having dispersed from the pack.

Photo

Useful Links

California Department of Fish & Wildlife — Gray Wolf Page