Motion-sensor cameras captured images of multiple gray wolves in Northern California.
At least three wolves have been identified as comprising the newly discovered pack.
Researchers suspect more wolves likely exist in the pack beyond those photographed.
The Sierra Nevada mountains provide an abundance of deer and other prey to sustain wolves.
Gray wolves have been making a comeback in California after being wiped out in the 1920s.
Wolves retain endangered species protection in California and number under a dozen known packs.