Plumas

Plumas is a province in the northwestern region of Sierra. Plumas is the 6th largest and 12th most populous of the 23 provinces of Sierra. The province's capital is Ukiah while the largest city is New Rotterdam. It is ranked 5th in the order of admission into the Kingdom, being admitted on November 28, 1858, the inaugural day of the Kingdom of Sierra. It is the only second-level administrative region in the Kingdom to have as one of its official languages.

Plumas shares borders with Shasta to the north, Washumko and Reno to the east, San Francisco and Tahoe to the south, and the to the west.