What is an example of a valid monument in terms of a legal description?

A stream bed serves as a valid monument in legal descriptions because it is a natural feature that can be precisely located and referenced in relation to property boundaries. Monuments are typically physical markers or distinct geographical features that help surveyors and legal professionals determine property lines and areas of land.

Natural landmarks like a stream bed can be permanent and easily identifiable, making them useful in demarcating the extent of a property. In legal terms, using natural features as monuments aids in ensuring that the boundaries are clear and established based on actual, observable characteristics in the landscape.

The other options, such as a garage, a fence, and a mailbox, may not serve as permanent or universally recognizable markers for property lines in the same way. A garage could be moved or altered, and fences can often be relocated, making them less reliable as enduring monuments in legal descriptions. Similarly, a mailbox may change location or be removed altogether, complicating its use as a precise point of reference for legal boundaries.