Md. Code, Nat. Res. § 5-1107 : NATURAL RESOURCES — FORESTS AND PARKS — PUBLIC RECREATION ON PRIVATE LAND AND LAND OWNED BY LOCAL GOVERNMENTS —1107 - Notice by landowner of private lands; written consent to enter private lands
Whenever the owner desires, he may post in conspicuous places notices informing the public that the land is private. The landowner, by written consent, may grant permission to enter on the land.