The Blue Mash Trail is a recreational hiking/biking path which surrounds the Oaks Landfill located at 6001 Olney Laytonsville Rd Laytonsville, MD 20882. The Blue Mash Trail carries two addresses to cover both sides of the trail: 20600 Zion Rd and 5899 Olney Laytonsville Rd. To report a non-emergency enforcement issue on the Blue Mash Trail such as illegal ATV or motorbike use, please call the non-emergency Police number at 301.279.8000. Issues requiring an immediate response from Police or Fire/Rescue should be reported by calling 911.