Bulk Gravel and Stone Delivery in Mineral County, MT
Montana Rock Supply sells gravel, stone and aggregate delivery in Mineral County, MT to two kinds of buyers: contractors building drives and pads, and homeowners fixing a muddy lane or a bare yard. Both start in the same place, with crushed base course.
You order online, pick a quantity, and a dump truck tips the load on site. Across the Western intermontane valleys, ground varies from silt and clay to coarse river gravel, so the material under the surface matters as much as the surface itself.
Materials Delivered in Mineral County
Crushed base course, also called 3/4 minus or 3/4 crushed base course, is the standard Montana base material. It is crushed stone with fines left in, ordered by top size, and it goes under driveways, shop pads, parking areas and shed bases.
In Montana, base material is specified as crushed base course.
The MDT Standard Specifications cover it under Section 701.02.4, where grades are named by nominal top size: Grade 5A at 2 inch minus and Grade 6A at 1 1/2 inch minus, with 3/4 inch minus, Grade 7A, developed as pit sources for the larger sizes ran short.
City and county work is more often written against Section 02235, Crushed Base Course, of the Montana Public Works Standard Specifications. County road standards call sizes out the same way, as 3 inch minus sub-base and 1 inch minus crushed base or top course.
Choosing the Right Material
Mineral County sits in Glacier Country, on ground described as Western intermontane valleys. Sanders County is in Glacier Country too, but its ground is different: glacial till and outwash from the Flathead lobe, deep lake silt and clay on the valley floors, gravel benches above them, and thin stony soils over rock on forested slopes.
Where the ground is deep silt and clay, water sits instead of draining, so a base course needs a drainage layer under it and a clean washed stone to carry water away. Where the ground is thin and stony over rock, the surface drains freely and the base is more about leveling than about water.
Missoula County shares the Western intermontane valleys ground region with Mineral County, so the soil and drainage conditions are the same. The material choices carry over.
Ground Conditions Across Mineral County
Across the Western intermontane valleys, the ground runs from glacial lake silt and clay on the valley floors to coarse sand and gravel outwash along the rivers, with shallow stony ground on the benches and mountain fronts.
A thin base course over silt shows its failure in spring. The silt drains slowly and stays soft well into spring, so a drive built on it ruts and pumps while the gravel beside the river is already firm.
Snowmelt off the surrounding ranges keeps the rivers up through May and June. High water scours banks, cuts gullies in silt benches, and runs hard off burned ground after a fire summer.
Riprap and large river rock armor those spots.
The working season is long enough by Montana standards, from breakup into late fall. Silty valley ground has to dry out before it will compact.
Frost depth is about 36 inches in Missoula, with deeper figures at higher elevation, and the local building department sets footing depth.
Delivery Across Mineral County
You choose a quantity by the ton or by the yard, then size the load with the calculator on each product page. Pick a delivery date at checkout and a dump truck tips the load on site in one pile.
Delivery covers Superior, Alberton, St. Regis and Saltese.
Have the drop spot clear and reachable by a dump truck, and know where the pile should land before the truck arrives.
Questions About Gravel and Stone in Mineral County
Should I order material by the ton or by the yard?
Both work, and the choice usually follows how you measured. If you worked out a volume, order by the yard.
If you worked from a weight, order by the ton. Each product page has a calculator that takes your numbers and returns a quantity.
Order the figure it gives you.
Which stone is best for drainage in Mineral County?
Washed rock, also called drain rock or 3/4 clean, is the clean drainage stone for French drains, curtain drains, foundation drains and downspout runs. Washing the fines out is the whole point, because fines slow water down.
For heavier work, 3/4 inch crushed rock and #57 stone also drain well.
What do I need to have ready for a bulk delivery?
Have the drop spot clear and reachable by a dump truck, with room for the pile. The truck tips the load in one pile, so know where that pile should land.
If a gate, low wire or soft ground is in the way, sort it out before the delivery date.
Order Gravel and Stone for Your Mineral County Project
Start with the calculator on the product page for the material you want, and settle the quantity by the ton or by the yard. From there, pick your delivery date at checkout and Montana Rock Supply sends a truck to your site.
Order online when you are ready.