Mulch & Supply Yard

Mulch, stone, erosion control, tools, and bulk materials


1078 New Castle Road, Prospect, Pennsylvania 16052 (Route 422 near the Big Butler Fairgrounds)



8AM – 4PM Monday – Friday
8AM – NOON Saturday


Get in Touch

Fossil Rock’s new supply yard is officially open!


Fossil Rock is celebrating our 10th year with a new location and new store! 

We offer a variety of mulch and stone (limestone and gravel) options, as well as:

  • Sand
  • Topsoil
  • Pallet filter sock and erosion control devices
  • Rigging
  • Safety supplies and work gloves
  • Tools
  • and more…

Our supply yard and store is conveniently located on Route 422 (New Castle Road) 10 minutes west of Butler – a stone’s throw from the Big Butler Fairgrounds.

Fossil Rock Supply one-page price list [PDF] or [.JPG] – our most popular items on one convenient page!  Looking for something specific? Ask us!

Are you a professional landscaper or contractor?  Contact us for commercial account options.

Current in stock mulch options: (as of March 22, 2023)

  • Natural
  • Premium bark
  • Color enhanced: Black, Brown, Cherry Brown [Red mulch is available for order.]

All mulch products are natural and non-toxic. Our mulch contains no pallet material – it is produced from land clearing debris and sawmill bark removal. 

We have tools!  Bully Tools are 100% made in the U.S.A. and Fossil Rock has them.  Bully Tools are made in Steubenville, Ohio.

Fossil Rock prioritizes USA-made and locally sourced products.

Ready to order? Have questions?

Reach out to us at or call 724-355-3747

Pick up in our yard on Rte. 422 or we can deliver!

Cash and major credit cards accepted.


Supply yard map