155 Wynooche Tracts Road, Montesano, WA 98563
Hours: Open Monday-Friday, 7am-3pm
(P) 360-249-2245 | (E) info@nwrock.com
PRODUCTS AVAILABLE:
- 6″ Minus
- 4″ Minus
- 2 1/2″ Minus
- 1 1/4″ Minus
- 1 1/4″ Minus CSBC
- 5/8″ Minus
- 5/8″ Minus CSTC
- 1/4″ Minus
- Bank Run
- Sand C-33
- Pea Gravel
- 7/8″ Concrete Aggregate
- 1 1/2″ Drain Rock
- 2″-8″ Cobble
- 6″-12″ Cobble
- Streambed Rock
SITE-SPECIFIC HAZARD AWARENESS

in partnership with the Mine Safety and Health Administration (MSHA)
All non-Northwest Rock personnel (as defined by 30 CFR 46.2)—including drivers, contractors, vendors, visitors, and others—must review this information and submit a Site-Specific Hazards Certification before entering any Northwest Rock facility.
Please click or scan the QR code to complete the certification process. For questions, contact us at 360-533-3050 or by email at info@nwrock.com.
Your safety is our priority.