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Maple 85 will be closed on Monday, 5/26/2025 to honor Memorial Day. From everyone at Maple 85, to those who've served, thank you for your service.

Boulders & Minis

We have a wide variety of mid- to large boulders as well as mini boulders (8″ to 20″).

Estimated coverage:

  • Boulders – 12.5 sq ft per ton
  • 8″ – 20″ Mini Boulders – 45 – 65 sq ft per ton
  • 4″ – 8″ Cobbles – 65 – 75 sq ft per ton

Boulders

Black Granite -
$339.00 per ton OR $0.17 per pound
Colorado Moss -
$340.00 per ton OR $0.17 per pound
Copper Creek Onyx -
$760.00 per ton OR $0.38 per pound
Glacier Granite -
$265.00 per ton OR $0.133 per pound
Misty Green -
$425.00 per ton OR $0.213 per pound
Oak Creek -
$375.00 per ton OR $0.188 per pound
Teton Marble -
$425.00 per ton OR $0.213 per pound
Royal Gorge Pink -
$425.00 per ton OR $0.213 per pound
Black Obsidian -
$425.00 per ton OR $0.213 per pound
Indian Sunset -
$425.00 per ton OR $0.213 per pound

Cobbles

Glacier Granite 4″ – 8″ -
$170.00 per ton OR $0.085 per pound
Oak Creek 4″ – 8″ -
$224.00 per ton OR $0.112 per pound
Oversize River Rock 3″ – 5″ - Ranges from approximately 3-5" in length, with some pieces larger or smaller. Image on the left shows the river rock after the dust has been rinsed off. The closeup image on the right shows how it looks in our bin, direct from the quarry.
$153.00 per ton OR $0.077 per pound
Tumbled White Marble 4″ -
$459.00 per ton OR $0.0.23 per pound

Mini Boulders

Copper Creek Onyx 8″ – 20″ -
$800.00 per ton OR $0.40 per pound
Glacier Granite 8″ – 20″ -
$170.00 per ton OR $0.085 per pound
Misty Green 8″ – 20″ -
$425.00 per ton OR $0.213 per pound
Oak Creek 8″ – 20″ -
$219.00 per ton OR $0.110 per pound
Teton Marble 8″ – 20″ -
$425.00 per ton OR $0.213 per pound
Black Granite 8″ – 20″ -
$339.00 per ton OR $0.17 per pound
Royal Gorge Pink 8″ – 20″ -
$425.00 per ton OR $0.213 per pound
Black Obsidian 8″- 20″ -
$425.00 per ton OR $0.213 per pound
Indian Sunset 8″-20″ -
$425.00 per ton OR $0.213 per pound

River Flats

Rocky Mountain Flats 3″ – 5″ -
$632.00 per ton OR $0.316 per pound
Rocky Mountain Flats 5″ – 12″ -
$604.00 per ton OR $0.302 per pound