Central Coast GIS
Wine appellation · CA

Howell Mountain

The Howell Mountain appellation was established in 1984 and covers 13,063 acres across Napa. It sits inside Napa Valley.

Established1984
Area13,063 acres · 20 sq miles
CountiesNapa
Part ofNapa Valley, North Coast
Federal listing27 CFR 9.94
Digital download
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  • SVG and DXF cut files12, 18, 24 in · 300, 450, 600 mm
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How it came to be

Recognised by the federal government on petition by nan.

13,063 acres

Neighbouring appellations


The boundary, as written into law

Every American wine appellation is defined in federal regulations by walking the boundary landmark by landmark. The official description of this one begins:

(1) Beginning at the 1,400 foot contour line at the intersection of Sections 15 and 16 in R6W/T9N of the Detert Reservoir Quadrangle U.S.G.S. map. (2) Then continuing in an east and southeast direction along the 1,400 foot contour line to the southeast corner of Section 23 in R5W/T8N. (3) Then in a generally northwest direction along the 1,400 foot contour line until it intersects the line between Sections 21 and 22...

Boundary traced by the UC Davis Library from the official descriptions in federal regulation, and released under an open licence. Smoothed for manufacturing. Decorative use only, not for legal boundary determination.