This data set is a point coverage that can be used to identify the location of landmarks (buildings and structures) that are permanent in nature. Symbolized buildings have no side larger than 50 meters for 1:20,000 data or no side larger than 30 meters for 1:10,000 data.

Please note that this data was collected with varying aerial photography dates and scales. Please use caution when interpreting data and results.

Supplementary tables can be used and are available for download from the additional documentation section. Supplementary look-up table descriptions are available in the data description document, which is available for download from the additional documentation section.