About Us

Since 1975 the Main family has been a supplier of crushed rock in Coos County.  

Our location -- 8 miles East of North Bend -- has rock, sand and topsoil products for purchase with delivery available.

Since 1975, Main Rock has operated at two locations -- Kentuck Quarry serving the Coos Bay-North Bend area and northern Coos County. And Ainsley Quarry south of Coquille serving Myrtle Point, Coquille, Bandon and southern Coos County. Rock is purchased by:

• The Cities of:
  • Coos Bay
  • North Bend
  • Bandon
  • Coquille
  • Lakeside
  • Reedsport
  • Myrtle Point
• Coos County
• Southwestern Oregon Community College
• Roseburg Forest Products
• Lone Rock Timber
• PacWest Timber Co.
• INDIVIDUALS