Castle Rock Oversized Drystack

Castle Rock stone comes from our highest mountain top quarry. Castle Rock is primarily grey, with chocolate brown, and light tan tones that display the ruggedness of Northwest Montana. ***Limited Availability – High Elevation Quarry***

Small Oversized Drystack

Weight: 300-1,000 lbs per rock
Size Range: 16″-30″ x 16″-30″

Medium Oversized Drystack

Weight: 1,000-4,000 lbs per rock
Size Range: 2’x2.5’x3′ to 3’x3’x4′

Medium Seat Rocks

Palletized, 16″-30″ x 16″-30″ x 2-5′ long (500-5,000 lbs per rock)

Large/Jumbo Oversized Drystack

Weight: 4,000-6,000+ lbs each
Size Range: 3’x3.5’x4′ to NO MAX size

–ALL material above must be machine set–

Geological Stone Type: Argillite

*All weights and coverages are approximate

Stone Vendor

Mussel Shell River Squares & Recs interior

Montana Rockworks, Inc.

Montana Rockworks, the Northwest’s largest supplier of Thin Veneer, Architectural and Landscape stone. We are located in Kalispell, Montana; just south of the gorgeous Glacier National Park. We quarry our stone right here in the Northern Rockies; helping homeowners, architects, masons, and contractors bring the majestic beauty of natural stone into their homes and building projects.