1. A mark to designate the boundary of land; any mark or fixed object; as a marked tree, a stone, a ditch, or a heap of stones, by which the limits of a farm, a town or other portion of territory may be known and preserved.

Thou shalt not remove thy neighbor's landmark. Deu 19.

2. In navigation, any elevated object on land that serves as a guide to seamen.

, n. In the United States, an office in which the sales of new land are registered, and warrants issued for the location of land and other business respecting unsettled land is transacted.