Active
OBYAN QUARRY
From Route 35, take Route 304 eastward. Follow Route 304. Turn left onto Naftan road., Northern Islands County, MP
MSHA ID6900001
TYPESurface
MATERIALConstruction Sand and Gravel
EMPLOYEES70
ABOUT
Obyan Quarry, operated by Hawaiian Rock Products and a subsidiary of Jerrold Clay Johnson, supplies high-quality construction sand and gravel for various construction applications. Located in Northern Islands County, MP, accessible via Route 304 and Naftan Road, this surface operation provides convenient access to regional markets with reliable material supply backed by a team of 70 employees.
MATERIALS PRODUCED
Construction Sand and Gravel
COMPANY INFORMATION
Operator
Hawaiian Rock Products
Parent Company
Jerrold Clay Johnson
Company Type
Corporation
DIRECTIONS
600
CONTACT
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Data Source
Mine Safety and Health Administration (MSHA)
Last updated: 1/30/2026