This soil was created by water flowing off the Sonoma Mountains that carried with it clay deposits.

They came to the rim of a deep canyon that seemed to penetrate to the heart of Sonoma Mountain.

Sweeping in from the ocean forty miles away, they were deflected by Sonoma Mountain and shunted high into the air.

Adobe Creek rises on the west flank of Sonoma Mountain.

Sonoma Mountain had a significant influence on Jack London and his writings.

To the north I could see the loom of Sonoma Mountain, toward which we rode.

Snow fell on the summit of Sonoma Mountain.

Across Sonoma Mountain wisps of sea fog are stealing.

Nothing could satisfy his holiday spirit now but the ascent of Sonoma Mountain.

The Sonoma Mountains to the west help protect the valley from excessive rainfall.