2012 Map of Detert Reservoir

About this map

Guenoc Winery and the surrounding viticultural landscape define this corner of Lake County, where the highlands of the Mayacamas Mountains meet the upper Napa Valley drainage. The terrain is characterized by dramatic elevation changes, notably The Palisades and Table Mountain, which overlook the complex network of creeks feeding into Detert Reservoir. A significant historical transport link, the Old Lawley Toll Rd, winds through the southwestern section of the map near Kimball Canyon, tracing the legacy of early regional commerce. Smaller aviation and agricultural interests are marked by the 7-M Ranch Airport and the high-altitude Dead Horse Flat. This geography illustrates the continued importance of water management and high-relief terrain in shaping Lake County's settlement patterns, from the banks of the Napa River to the shores of Lake Bordeaux.