California is currently home to four known gray wolf packs.
In 1924, California’s last known gray wolf was trapped and killed in Lassen County. California had no known gray wolves since then until OR-7 traveled into the state for a period of time during parts of each year from 2011-2014. OR-7 was originally from the Imnaha Pack in NE Oregon and is now the breeding male of the Rogue Pack in Southern Oregon. Gray wolves are protected statewide by the California Endangered Species Act.
Definition of a wolf pack in California:
In California a pack is defined as two or more wolves traveling together and using a definable area, while a breeding pair is defined as a mated male and female wolf pair that have produced pups, at least two of which have survived through December 31st of the year in which they were born.
Wolves of Unknown Pack Affiliation