On the eastern flank of Sonoma Mountain, at the headwaters of Sonoma Creek is the Van der Kamp Vineyard. One of the oldest homesteads on the mountain, it has been farmed continually for over one hundred years with the crops not much different over time and always planted to some variety of grapevine. At an elevation of 1250 to 1500 feet, they sit above the frost line. Two fog banks move up on opposite sides of the vineyard - one from the Petaluma gap that winds up the Russian River and the other that comes in from the bay.
