Buy Gravel & Rock in Spearfish, South Dakota

Choosing the wrong gravel or rock for a project in Spearfish can lead to washout, poor compaction, or weed growth. Spearfish gets about 25 inches of precipitation a year, so drainage and washout planning matter when picking a material. Understanding what each product does and does not do prevents those problems.

This page covers the gravel and rock types we deliver in Spearfish, what each is best suited for, and how the local freeze-thaw cycle affects your choice. You can order the right material online and have it delivered right to your address.

Gravel and Rock Products for Spearfish Projects

Every gravel and rock product has a specific job. Using a decorative rock where you need compaction, or a compacting stone where you need drainage, creates problems. The table below lists each product we offer, what it is made for, and a note on where it works best.

Which Material for Common Spearfish Projects

The project determines which gravel or rock to order. The table below matches common jobs with the right product and a typical depth.

How Spearfish Weather and Soil Affect Your Gravel Choice

Spearfish sees about 53 days a year with at least a tenth of an inch of rain, so scheduling the delivery onto firm ground matters. The county permitted about 203 single-family homes in 2024, and many of those lots need a base that handles both wet and frozen conditions. Around here, ground freezing is deep and long, which affects how deep the base layer needs to be.

About 157 days a year drop below 32 degrees F. That long freeze season means the ground moves as it thaws. Ground that freezes deep moves as it thaws, which is why the base layer matters more here than the top layer. Snowfall averages about 70 inches a year, and plowing can damage a loose surface layer if the base is not compacted well.

Soils mapped in the Spearfish area are commonly well drained, so you may need less base stone under the surface layer than in heavier soil areas. The ground here takes in water at a moderate rate, which means standard base depth is usually enough for most projects.

How Much Gravel or Rock You Need

Gravel and rock are sold by the ton, and the tonnage you need depends on the area and the depth. To estimate your quantity, use our material calculators. Enter the length, width, and depth in inches, and the calculator tells you the tons required for the product you choose.

Ordering from Gravel Monkey

Buying gravel and rock in Spearfish is straightforward. You order online by the ton, and delivery is priced by ZIP code at checkout. A dump truck brings the load to your address, and loads range from 1 to more than 40 tons. Free delivery is available on qualifying orders. Use code FIRSTTIMER50 for $50 off your first order.

You choose a delivery window at checkout: morning (7 am to 12 pm) or afternoon (12 pm to 5 pm). The delivery date must be at least 3 business days after the order date. You receive an email confirmation when you order, then a second email closer to the date with the scheduled window and a photo of the material being loaded. Delivery only goes ahead after you approve that second email. You or someone you nominate must be at the site during the delivery window.

Learn more about how we work on our About Gravel Monkey page. See what customers say on our customer reviews page. Full details on scheduling and fees are on our delivery information page.

Other Materials to Pair with Gravel and Rock

For a complete job, you may need more than just the top layer. These materials work well alongside gravel and rock in Spearfish.

• Crushed Gravel, Use as a compacting base under decorative rock or decomposed granite.
• Topsoil, Topsoil under landscape rock helps plants root and the rock stay clean.
• Crushed Concrete, A budget-friendly base for driveways and parking areas under gravel.
• Walkway Gravel, A smaller, smoother gravel for paths over a compacted base.
• Crushed Stone, Sharp-edged stone that locks together; good under or mixed with river rock.
• Sand, Sand levels the ground before a base layer and fills joints in stone.

Frequently Asked Questions About Gravel & Rock in Spearfish

Is Spearfish wet enough that drainage should drive the choice?

Yes. Spearfish gets about 25 inches of precipitation a year, which is enough to cause washout on slopes and puddling on flat surfaces if the material does not drain. Products like drain rock and 2-4 inch river rock are made for wet conditions. For paths and patios, a compacted base of crusher run keeps the top layer from moving.

Does the length of the freeze season in Spearfish change what I should order?

Yes. About 157 days a year drop below freezing, which means the ground freezes deep and then moves as it thaws. This freeze-thaw cycle puts stress on the base layer. A proper base of crusher run or road base prevents frost heave from ruining the surface. The base depth needed is greater where frost goes deeper.

Do you take orders from businesses as well as homeowners?

Yes. Gravel Monkey delivers to businesses, contractors, and homeowners alike. Ordering online by the ton works the same for any customer. The same delivery windows and lead times apply.

How is gravel and rock measured and sold?

Gravel and rock are sold by the ton. A ton covers roughly 100 to 120 square feet at a depth of 2 inches, but the exact coverage varies by product density. Use our material calculators to get an accurate tonnage estimate for your project.

Calculate Your Tonnage and Order

Not sure how many tons you need? Use the material calculators on our site to figure it out. Then place your order for delivery to your Spearfish address. For more information about what we deliver in Spearfish, visit the Spearfish hub page.

We also deliver gravel and rock to nearby towns in the area.

• Deadwood
• Lead
• Belle Fourche
• Sturgis
• Sundance
• Piedmont
• Summerset
• Hill City
• Rapid City
• Box Elder