A R Wilson Quarry, operated by Granite Rock Co., produces high-quality crushed and broken granite from its surface mine in San Benito County, CA. Located off of CA-129W, the quarry is professionally managed and supplies a substantial output of granite materials.
Operator
Granite Rock Co
Parent Company
Peter J Lemon
Company Type
Corporation
332
Contact information not available for unclaimed listings.
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36.897222, -121.634722
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