The Paso Robles Willow Creek District sits to the West of Paso Robles and Templeton. The topography is high elevation mountainous bedrock slopes across a more erodible member of the Monterey Formation. Elevations run 960 - 1,900 feet topping out somewhat lower than the Highlands.
Soils are comprised of mostly bedrock from the middle and lower members of the Monterey Formation. Patches of alluvial soil along streams exist yet the District is largely calcareous with loams to clay loams.