
Quality rock and gravel for driveways, landscaping, construction and more.
Serving Kittitas Valley with convenient pickup and delivery.
Rock and gravel for projects big and small.
Family owned and proudly serving Ellensburg and surrounding areas.
From Snoqualmie Pass to Vantage.
Pick up at our quarry or let us deliver directly to your project.









Riverbottom Rock is operated by Thayer Excavating. Thayer Excavating has served Kittitas County since 1973 with heavy civil construction, site work, rock walls, and construction services.
Experienced professionals dedicated to your success.
Proven results that speak for themselves.

Serving the Kittitas Valley with quality rock and gravel.
Pickup by appointment only. Please call ahead to arrange pickup or delivery.
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