Office Address: 2131 Riverbottom Road -Ellensburg, WA 98926- 509-925-5457-www.rbrox.com- office@rbrox.com

Quarry Address: 7800 Umptanum Road Ellensburg, WA 98926

Please call ahead or email  for pricing, to set up pick up and delivery times. We operate on an as needed basis and are not open every day to the public.

Loads are weighed on our 10x80 foot scale and sold by the ton. 

Delivery Options:

Riverbottom Rock is a DBA of Thayer Excavating, LLC. We have a wide selection of rock for driveways, roads, landscaping needs, site prep and more! Please click on above link to check our website for your excavation needs.

5/8" Minus WSDOT Spec Top Course

1 1/4" Minus WSDOT Spec Base Course

2-4" Quarry Spalls

1-2" Clean Basalt

2-1/2" Minus Road Ballast

Light Loose Rip Rap

Basalt Columns

Basalt Bird Bath