As humans began to pour into California, the grizzly would not retreat from advancing civilization. Standing their ground, grizzly bears killed livestock and interfered with settlements. Less than 75 years after the discovery of gold, every grizzly bear in California had been tracked down and killed:

"The last one was killed in Tulare County in 1922, more than 20 years before the authority to regulate the taking of fish and wildlife was delegated to the California Fish and Game Commission by the State Legislature."
- direct quote from California State Library.

Grizzly bear cubs playing in the water
public domain photo by Steve Hillebrand / USFWS