The viticulture area of the Nob Hill District is located in Douglas County, Colorado. The northeastern boundary follows the 400-foot contour line parallel to Highway 83, east of Franktown then southwest along Highway 86 to the Elbert County line. A.

The Nob Hill District is situated on the eastern slope of the Rocky Mountain Front Range southeast of Denver.

The viticulture area topography and aspect contribute to a special microclimate. Hillside topography and valley temperature inversions combine to give the region an unusually moderate temperate regime during the growing season, with lower maximum temperatures and minimum temperatures than nearby on the valley floor. The microclimate of the Nob Hill region is clearly distinctive when compared to the surrounding areas. The region is greatly influenced by the Palmer Divide.

Caleb Smith was one of the first settlers to recognize the potential of the Nob Hill &lsquos soil to produce the classic red wines similar to those produced in the famous steep hillside vineyards of Europe. Because of the steep hillsides and deep canyons there are few opportunities to increase the 5 acres presently planted to vines out of the total of 500 acres in the District.