Cascade hard rockWSDOT source D-334Granite Falls · since 1988
Crushed rock, road base, riprap and rockery stone for Snohomish County contractors.
Products & prices
What we quarry, by the ton
Hard-rock aggregate crushed and graded on site, ready for pickup or delivery. Call dispatch to confirm current pricing and schedule a load.
Crushed Rock & Road Base$17 – $21 / ton
¾″ – 2½″ minus
Hard-rock crushed aggregate in a range of gradations for road base, structural fill and paving sub-base.
Chips$20.75 – $28 / ton
Multiple sizes · washed & unwashed
Washed and unwashed chip rock for surface treatments and drainage applications.
Quarry Spalls$19.75 / ton
2″ – 8″
Rough-fractured rock for drainage, erosion protection and trench backfill.
Bulk Rock & Riprap$33 – $40 / ton
Light & heavy loose · WSDOT
Large loose rock for erosion control, shoreline protection and scour mitigation.
Rockery Stone$50 / ton
1-man – 5-man & larger
Decorative and structural rockery stones for walls and landscaping.
Specialty AggregatesCall for pricing
Permeable ballast · gravel borrow · ATB/HMA
Permeable top course, ballast, base course and gravel borrow for structural earth walls — all WSDOT-certified.
Prices are per ton and subject to change — call dispatch to confirm the current rate and book delivery.
Why Iron Mountain
Verifiable where it counts
Four things that let a contractor spec our rock on a county job without a second test.
- WSDOT Source · Pit D-334
WSDOT Source · Pit D-334
Approved for mineral aggregate through 06/04/2029 and riprap through 03/11/2027.
On-site QC lab
Gradation and spec monitored lot to lot, so the rock is consistent load to load.
Interactive dispatch
Get what you need, when you need it — deliveries timed to your crew.
Locally owned since 1988
A privately held Granite Falls operation, not a regional corporate chain.
From blast to dispatch
How the rock gets to your truck
Ledge rock worked from the face to the scale house, one controlled step down the quarry at a time.
Blast
Shot from the ledge
Hard rock is drilled and shot from the benched faces of the Cascade foothills.
Crush
Run through the plant
Shot rock is hauled to the crushing plant and reduced to the working gradations.
Grade
Checked in the QC lab
The on-site lab runs gradation and spec checks so every lot meets its numbers.
Dispatch
Loaded and sent
A loader fills your haul truck and dispatch times the delivery to your crew.
In their words
Best rock, period
Absolutely the best rock period! I have used rock from several different quarries from Olympia to Lynden and there's no doubt IMQ has the best rock to spread, compact and it looks amazing!
Always have what we need…Fast..Friendly and accommodating to business large and small.
Nice people! Great product!
Environmental services
Soil remediation & inert disposal
Our thermal-remediation plant treats Class II and Class III petroleum-contaminated soils, with a covered incoming-soil storage facility and easy truck access in and out.
Trucking contaminated material to the site? Load up with aggregate for the return haul and cut your round-trip cost. Open Monday–Friday.
Ken Miller(425) 210-3606kenny@ironmt.net
Inert waste disposal
- Clean dry dirt
- $12 / ton
- Wet dirt
- +$5 / ton
- Asphalt / concrete
- $15 – $17 / ton
- Rebar concrete
- +$3 / ton
3.6% WA state refuse tax applies to all disposal.
Dispatch & hours
Call the yard
Dispatch picks up and times your delivery — there is no order form, because this is a phone-and-scale-house business. Call, tell us the product and the tonnage, and we will schedule it.
Hours
- Monday – Friday
- 6:30 AM – 4:30 PM
- Saturday
- 7:30 AM – 3:30 PM
- Sunday
- Closed
The yard
20800 N. Gun Club RoadGranite Falls, WA 98252
Serving Snohomish County · Puget Sound region
Get directions