Napa Quarry, operated by CalMat Co (a Vulcan Materials Company), supplies high-quality sand and industrial NEC materials suitable for diverse construction and manufacturing applications. Strategically located in Soscol, Napa County, CA, just 1 mile north of Highway 29, this surface mine offers convenient access to major Northern California markets. With a workforce of 50, Napa Quarry provides reliable supply and consistent product quality.
Operator
CalMat Co
Parent Company
Vulcan Materials Company
Company Type
Corporation
50
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38.261944, -122.275833
Data Source
Mine Safety and Health Administration (MSHA)
Last updated: 1/30/2026
Out of service/shop storage location. 90 Industrial Way, Beckwourth, CA 96129, CA
Construction Sand and GravelI-80W to CA 37 towards Novato, Right on Hwy 101 N to Exit 479 and go Left. Right onto Stony Point Rd, Left on Roblar Rd. Mine is on Left, CA
Construction Sand and GravelFrom F/O take I-10 West to 215 North to the I-15 North, to the 395 to Fort Independence. Juts past Fort Independence, turn left on dirt road, W. Dusty Ln. and follow to mine., CA
Sand, Industrial NECFrom Hwy 41, head West on Hwy 145 for approximately 1 mile. Turn left onto 40450 E. Hwy 145, Madera, CA 93636., CA
Crushed, Broken Stone NEC