Relief markers are objects used to mark points of interest on a relief, placed by government agencies and surveyors. They have a long history and can be permanent or temporary. Tampering with them is illegal and can result in fines. Enthusiast organizations conduct scavenger hunts with them.
A relief marker is a permanent or temporary object that marks a point of interest or landmark on a relief. Such markers can be placed by government agencies and surveyors on private contracts. Careful logging accompanies each marker to note where and when it was set and record all relevant details. It is forbidden to disturb the investigation indicators, as it may interfere with government operations and other activities.
The history of survey markers is ancient. Humans have used maps for centuries to delineate borders and other points of interest, and have relied on markers such as stone cairns or distinctive geographic features to navigate. Maps annotate the location and meaning of a marker so the reader can find it and use it as a reference point. The practice of making markers from stone, wood, clay, and other materials has a long history in some regions of the world.
Government agencies typically place permanent bearing markers, either anchoring them in concrete or bolting them in place to make them difficult to move. The marker may include an identifying number and other information that may be useful to observers. When used in triangulation observations, it may have a triangle icon or a notch for a tripod. A clause warning of legal penalties for anyone attempting to move the survey marker is also common.
Surveyors may place permanent or temporary survey markers as part of their job. They typically use a survey marker to mark part of a property boundary or a point of interest in a survey. When recording data about the marker and its placement, they can note any particular findings or observations. These markers may also be used in activities such as collecting credits or preparing timber harvest plans, where physical markers at a location of interest may be required by law.
Forging, removing, or tampering with tracking indicators can result in significant fines. These markers are part of the official registry used for activities ranging from generating detailed topographic maps to determining national boundaries. If a marker is accidentally disturbed, this should be reported to the appropriate point of contact, usually listed on or near the marker, so that the problem can be corrected.
In some regions, enthusiast organizations conduct scavenger hunts with survey markers. Members of these organizations look for indicators listed on maps and other documents. They take photos to document the findings of their survey markers and share them at meetings and across websites.
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