M & M Lime Co Has been providing Limestone to Butler & surrounding Counties for over 52 years. All sizes of state-approved roadstone available. All stone is very clean, deep-mined limestone or washed gravel, tested by the PA Department of Transportation (PennDOT). WBE certified. Our products include: limestone, lime, gravel, crushed stone, coal, river rock, flagstone, granite, and boulders. We are happy to deliver or feel free to pick up at our plant. Call or stop by today!