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