From Business: Specializing In Drilling Pier Foundations, Cell Tower Foundation Drilling, Clearing & Grubbing, Site Prep & Road Building, Dirt Pads, Foundation Drilling. 9. Kelly Dirt & Gravel. Excavation Contractors. (662) 205-6391. Serving the. Saltillo Area. Showing 1-9 of 9. Gravel For Sale in Saltillo on YP.