Lat Lon Source Scale


Identifies the ratio of the map or cartographic product to the true location. The data element for scale should be the X value of the 1:X ratio (e.g., if the scale is 1:24,000, the value of the scale data element should be 24,000). The United States Geological Survey 1:24,000 is usually the smallest reasonable scale for locating individual points. The relative accuracies of maps as a locational tool decreases as the X value increases. This field is required when the Horizontal Collection Method is based upon using a map and photos.

Business Rules

Required if Lat Lon Method is not a GPS method.

Must be greater than zero.

May be up to 12 digits.