York Mountain
AVA · San Luis Obispo County · District 8
27 CFR 9.80 · established 1983-08-24 · last amended 1987-02-27
Heat class II · 1991-2020 normals
Climate normals in three numbers
, Apr 1 – Oct 31
5 GridMET cells cover this region
season rain, Apr 1 – Oct 31
42 mm of it in the , Sep 1 – Oct 31
Warm and cool vintages since 1980
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Rain across the season, and at harvest
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The boundary
Hovering a shaded region names it; a click opens its page.
Measured vineyard area
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Drought categories, year by year
San Luis Obispo County — not York Mountain
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What's in the ground
6.5
pH, 1:1 water
10.1cm
, whole profile
69cm
to
Well drained
, dominant condition
Distribution across 39 · mean ◆, median │, p10–p90 bar
Dominant
- 26.3%
- 22.8%
- 11.8%
- 6.3%
- 5.8%
39 map units · soil described over 100.0% of the region’s area · 12.2% is water, rock outcrop or other non-soil · 95% of the described area has a restrictive layer within the profile.
Sand, silt and clay, against every other appellation
Loam
43% sand · 34% silt · 23% clay
Sandier than 56% of California appellations and clayier than 53%. Each grey point is one appellation’s topsoil; appellations nest, so this is a distribution of places rather than of land.
Plus 14% rock fragments by volume, which the triangle does not describe — the three fractions are of the fine-earth material only.
Elevation, slope and aspect
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Bearing acreage by variety
San Luis Obispo County · District 8
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Price per ton
San Luis Obispo County · District 8
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The appellation in federal law
The boundary, in the government’s own words (144 words)
(c) Boundaries. The York Mountain viticultural area is located in San Luis Obispo County, California. The boundaries are as follows: (1) From the beginning point at the northwest corner of the York Mountain Quadrangle map where the Dover Canyon Jeep Trail and Dover Canyon Road intersect, proceed east along Dover Canyon Road 1.5 miles to the western boundary line of Rancho Paso de Robles; (2) Follow the western boundary line of Rancho Paso de Robles southwest 6.0 miles to where the boundary joins Santa Rita Creek; (3) Turn right at Santa Rita Creek and follow the creek 5 miles to where the waters of Dover Canyon and Santa Rita Creek meet; and (4) Then proceed north along Dover Canyon Creek to its intersection with Dover Canyon Road, then following Dover Canyon Road (which becomes Dover Canyon Jeep Trail) back to the point of beginning.