Definition
Physical objects or monuments that fix and identify the boundaries of a tract of land or estate. In property law, landmarks serve as the authoritative markers by which the extent of ownership is determined on the ground. They may be natural (trees, streams, rocks) or artificial (stakes, stones, posts, fences) and hold legal significance because they define what land belongs to whom.
In a broader modern context, "landmark" has also acquired a distinct regulatory meaning: a structure or site designated by governmental authority as having historical, architectural, or cultural significance, subject to special use restrictions under historic preservation law. These two meanings — boundary markers and designated historic properties — operate in separate legal frameworks and should not be conflated in research.
Common Language
Modern common usage (Wiktionary): Plural of landmark. In ordinary English, a landmark is a prominent or recognizable feature of a landscape, or figuratively, a significant event or achievement.
Historical common usage (Webster's 1913): "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."
The common meaning has drifted considerably from its legal core. Everyday usage now foregrounds the idea of a notable or historic structure — the legal sense in preservation law — while the foundational property-law meaning (a physical marker fixing a boundary) has receded from general speech. Researchers working in historical sources will find that "landmarks" almost always refers to boundary markers, not heritage designations.
Common Confusion
The word "landmark" today carries two legally distinct meanings that are easy to conflate. As a boundary-fixing object, a landmark is an instrument of real property description and conveyancing — relevant to deeds, surveys, and adverse possession analysis. As a designated historic property, a landmark is a subject of zoning, historic preservation ordinances, and constitutional takings analysis. Historical legal dictionaries, including Bouvier's, address only the former meaning. The preservation-law sense is entirely a product of twentieth-century statutory and regulatory development. A researcher who encounters "landmark" in a nineteenth-century deed or title dispute is almost certainly dealing with a boundary marker; a researcher working with modern municipal codes or federal preservation statutes is almost certainly dealing with heritage designation.
Recognized Forms
/SUBTYPES
Boundary landmarks: Natural and artificial markers called out in a deed or survey to describe the metes and bounds of a parcel. Their location, identity, and priority over other calls (distance, direction) are governed by the rules of deed construction.
Local landmark designations: Properties designated by municipal or county historic preservation commissions under local ordinances as having historical or architectural significance. Designation typically triggers design review requirements and may restrict demolition or exterior alteration.
National Register listings: Properties listed on the National Register of Historic Places under the National Historic Preservation Act. Federal listing does not restrict private use directly but triggers review requirements when federal undertakings are involved and may confer eligibility for tax incentives.
National Historic Landmarks: A subset of National Register properties designated by the Secretary of the Interior as having exceptional national significance. The designation carries heightened review obligations for federal agencies.
Why It Matters in Research
In historical sources, the term operates almost exclusively in the metes-and-bounds tradition. When reading colonial-era, antebellum, or nineteenth-century deeds, boundary disputes, or survey records, "landmarks" refers to physical markers called out in a property description. Their legal significance depended on the hierarchy of calls: in most jurisdictions, monuments (including landmarks) controlled over courses and distances when descriptions conflicted. Researchers analyzing historical titles or boundary litigation need to understand this hierarchy to follow the arguments in older cases and treatises.
The modern preservation-law meaning introduces an entirely separate body of research. Local landmark designation, unlike National Register listing, can impose direct restrictions on private property, raising constitutional questions under the Takings Clause. The corpus divides sharply along this line: materials before roughly 1960 will use the term in its boundary-marker sense; materials after the National Historic Preservation Act of 1966 may use it in either sense, requiring context to disambiguate.
Researchers working across time periods should be alert to this semantic shift. An index entry for "landmarks" in a digest covering multiple centuries may aggregate materials from both frameworks without flagging the distinction.
Historical Dictionary Support
Bouvier's Law Dictionary defines landmarks simply as "objects or monuments fixing the boundary of an estate or piece of property," directing readers to Russell and Lyon's Dictionary for further treatment. This is the universal understanding in classical legal dictionaries. The definition is spare and functional: a landmark is defined entirely by what it does (fix a boundary), not by what it looks like or who placed it. Bouvier adds no doctrine about the relative weight of landmarks versus other survey calls, though that doctrine was well developed in contemporary treatises and case law. Historical dictionaries are silent on the preservation-law meaning — that meaning did not exist as a legal category when these works were written, and no synthesis across historical sources will surface it.
Jurisdictional Note
Boundary landmark doctrine is governed by state property law, and the rules for resolving conflicts among survey calls vary by jurisdiction, particularly between states with strong metes-and-bounds traditions and those with rectangular-survey (public lands) systems. Historic preservation designation operates at three levels — federal, state, and local — and the regulatory consequences of designation differ substantially across jurisdictions.
Encyclopedia Cross-Reference
Historic Preservation — National Register, Local Landmark Designation, Regulation (Law Mind Property Law Encyclopedia, property_108).