Pack Status: Active. Designated in 2024.
The Diamond Pack was confirmed in Plumas County in the Fall of 2024 after CDFW received images of a pair of wolves from camera traps owned by a member of the public and UC Davis in December 2023 and January 2024, respectively. Their range is in the Diamond Mountains in the eastern Plumas and southern Lassen counties, just 50 miles north of Lake Tahoe.
The pack is known to use portions of eastern Plumas and southern Lassen counties near the Nevada border. Subsequent monitoring of the area in the spring and summer of 2024 led to further detections and the pair meeting the criteria of a pack by persistence in the third quarter of that year. Genetic analysis indicates one of the wolves is LAS28F, a female born into the Lassen Pack in 2021. The other wolf was identified as LAS30M in the spring of 2025.
