Gravel, Stone and Soil for Summit County, UT
Utah Rock Supply handles gravel, stone and aggregate delivery in Summit County, UT. Start with untreated base course, the material Utah plans call UTBC and yards ticket as 3/4 inch minus.
Across the Wasatch Back and the mountain valleys, rock sits close to the surface in a lot of places. That decides how deep anything can be dug, so base depth is worth settling before you order.
Ground Conditions Across Summit County
The working season here is short. Compaction is not practical on frozen ground, so base and paver work gets squeezed into late spring through early autumn.
Snowmelt drives the water. A deep snowpack releases over a few weeks and saturates the valley bottoms while the subsoil is still frozen, and steep ground sheds fast onto the valley floors and driveways below.
That melt gullies cut slopes and driveways and scours stream banks. Bare construction ground loses soil to the same runoff.
Across the Wasatch Back and the mountain valleys, thin stony soils sit over bedrock on the slopes, with stream and glacial gravel in the valley bottoms and pockets of heavy clay in old meadow and lake ground.
Frost depth in Summit County is 36 inches under the 7/1/2026 design criteria, and deeper at the highest elevations. Each jurisdiction sets its own figure, so check the building official before you set footing depth.
Gravel drives take a beating from plowing all winter. Surface them with material that stands up to that, not with a thin dusting.
Materials Delivered in Summit County
Untreated base course is the material under driveways, parking pads, slabs, shed bases and paver work in Summit County.
City and county work follows the APWA Utah Chapter Manual of Standard Specifications, where the matching section is 32 11 23 Untreated Base Course. Those are the words Utah plans and submittals use, and the size is set by top size: 3/4 inch minus or 1 1/2 inch minus.
Crusher run is a crushed, self-binding material for drives and pads, though Utah plans and yards normally say untreated base course or road base for that job. Crusher fines are the standard path detail, and drain rock is what Utah yards also call washed rock.
Natural Pea Gravel suits walkways, play areas and dog runs. Wasatch Cobble covers decorative beds, mow strips and dry creek beds, and Large River Rock handles swales and slope cover where runoff would move a smaller stone.
For sand, Mason Sand serves brick and block work and paver joints, while Washed Sand beds and levels under pavers and slabs. Fill Dirt raises grade before a base goes down.
Choosing the Right Material
Wasatch County and Morgan County sit in the same ground region as Summit County. Thin stony soils over bedrock, stream and glacial gravel in the bottoms, and heavy clay in old meadow ground: the same ground, the same base and drainage choices.
Clay ground holds water, so it wants a clean drainage layer under it. Stony slopes over bedrock want rip rap on exposed cuts.
Both conditions show up across the Wasatch Back and the mountain valleys.
Match the material to the job. Use untreated base course where something will be built on top, a clean washed stone where water has to move, and a fines-bearing material only for surfacing.
Delivery Across Summit County
Utah Rock Supply delivers bulk aggregate across Summit County, including Park City, Kamas, Coalville, Oakley and Peoa. Order online and pick a delivery date at checkout.
Quantities are ordered by the ton or by the yard. Each product page has a calculator to help size the load before you check out.
A dump truck tips the load on site in one pile. Plan where that pile should sit before the truck arrives.
Order Gravel, Stone and Soil in Summit County
Utah Rock Supply delivers untreated base course, drainage stone, sand, topsoil and decorative rock across Summit County, from Park City and Kamas to Coalville, Oakley and Peoa. Order online, size the load by the ton or the yard, and pick your delivery date at checkout.