Eagle Mountain homeowners currently have four boulder options through DIY Landscape Supply: Herriman Grey ($125), Blonde ($135, on sale from $155), Bonneville ($135, on sale from $155), and Salt and Pepper Granite ($195). Every order is delivered directly to your Cedar Valley property — DIY Landscape Supply is delivery-only, with no customer pickup — and orders of 10 yards/tons or more ship for a flat $75 delivery fee. The right boulder for your project depends on whether you’re building a retaining wall into a graded Ranches-area slope, anchoring a xeriscape bed in City Center, or setting a single focal stone by a water feature. Below is a full breakdown of price, look, and best use for Eagle Mountain’s clay-heavy, alkaline conditions.
Eagle Mountain gets roughly 13.5 inches of rain a year — far less than the 30 inches a Kentucky bluegrass lawn needs to thrive without heavy irrigation. Add in the region’s native clay-heavy, alkaline soil (with higher salinity in the lower-elevation City Center lots than in The Ranches), and a lawn-first landscape plan fights the site instead of working with it. Because Eagle Mountain is one of the fastest-growing cities in the state, a large share of yards are also freshly graded and unfinished, with slopes, bare dirt, and drainage paths still needing a permanent solution. Boulders solve several of these problems at once: they hold a graded slope in place, need zero irrigation once set, and give an otherwise bare new-construction yard a finished look on day one.
| Boulder Type | Look | Starting Price | Best For |
| Herriman Grey | Neutral gray, rounded natural shape | $125 | Blends with any home color; borders, foundation plantings, general accents |
| Blonde Boulders | Warm tan tone, rough natural texture | $135 (sale, was $155) | Matches Eagle Mountain’s sagebrush and high-desert palette; xeriscape beds |
| Bonneville Boulders | Rugged, natural mixed earth tones | $135 (sale, was $155) | Retaining walls and slope stabilization on graded lots |
| Salt and Pepper Granite | Speckled black, white & gray granite | $195 | Premium focal points; water features; modern/contemporary front yards |
| Order Size | What It Covers | Delivery Fee | Notes |
| 1–4 boulders | Spot accents, small focal points | Standard delivery rate — call for a quote | Best for a single retaining feature or entry accent |
| 5–9 yards/tons | Mixed boulder + rock or soil order for a mid-size bed or short wall | $25 off with code SAVE25 | Combine boulders with mulch or rock for one delivery |
| 10+ yards/tons | Full retaining wall, large slope stabilization, or whole-yard xeriscape | Flat $75 delivery, no code needed | Most cost-efficient per-boulder price point |
Because boulder sizing and per-ton weight vary by type, the fastest way to get an exact count and price for a specific wall length or bed size is a quick call — the team will calculate quantity before you confirm the order.
Call DIY Landscape Supply today at (385) 321-3341 or order online — we deliver Herriman Grey, Blonde, Bonneville, and Salt and Pepper Granite boulders straight to your Eagle Mountain property, with flat $75 delivery on orders of 10+ yards/tons and $25 off orders of 5–9 yards/tons with code SAVE25.
How much do landscape boulders cost in Eagle Mountain, UT? Individual boulders from DIY Landscape Supply start at $125 (Herriman Grey) and range up to $195 (Salt and Pepper Granite), with Blonde and Bonneville boulders currently on sale at $135. Orders of 10+ yards/tons ship for a flat $75 delivery fee.
Does DIY Landscape Supply deliver boulders to Eagle Mountain? Yes. DIY Landscape Supply is a delivery-only service covering Eagle Mountain and the rest of Utah County — there is no customer pickup option.
What’s the difference between Blonde and Bonneville boulders? Blonde boulders have a warm tan tone that matches Eagle Mountain’s high-desert, sagebrush landscape and works best in xeriscape beds. Bonneville boulders have a more rugged, mixed earth-tone look suited to retaining walls and slope stabilization.
Are boulders a good erosion control option for Eagle Mountain’s clay soil? Yes. Eagle Mountain’s native soil is clay-heavy and well-drained but prone to runoff on graded slopes. A boulder line at the base of a slope holds soil in place far more permanently than mulch or plantings alone.
Can boulders help reduce watering needs in Eagle Mountain? Yes. With only about 13.5 inches of annual rainfall, replacing a section of lawn with a boulder-and-drought-tolerant-plant bed eliminates the irrigation that grass would otherwise require in that space.
Do I need a permit to install large boulders in Eagle Mountain? Permit requirements depend on wall height and HOA guidelines, particularly in The Ranches. Check with Eagle Mountain City and your HOA before building a retaining wall taller than a few feet.
How many boulders do I need for a retaining wall? It depends on wall length, height, and boulder size. Call DIY Landscape Supply at (385) 321-3341 with your wall dimensions and the team will calculate the right quantity before you order.