[DFG]

The Emerald Triangle is a region in Northern California that derives its name from being the largest cannabis-producing region in the United States.

Humboldt County : (Eureka is the county seat)
Trinity County : inland
Mendocino County : south

https://en.wikipedia.org/wiki/Emerald_Triangle

I grew up in the SF Bay Area. About once a year, we went to Fort Bragg in Mendocino County to ride the Skunk Train to Willits.

https://www.skunktrain.com/

[Jolla]

Our family loved Mendocino, we went 2-3 times a year to Philo and Boonville.