This dataset depicts the extents of Slow Speed Low Altitude Military Training Routes (SR) from Cycle 1806 (24-MAY-18 to 20-JUN-17). It was created from processing / converting linear DAFIF (Digital Aeronautical Flight Information File) GIS source files gathered from NGA’s NIPRNet to convert the dataset from line to polygon formats with original / source attribution included per segment. It was created and compiled by the Defense Installations Spatial Data Infrastructure (DISDI) Program within the Office of the Assistant Secretary of Defense for Energy, Installations and Environment, Business Systems and Information Directorate.

While every attempt has been made to provide the best available data quality, this dataset is intended for use at mapping scales 1:50,000 and 1:3,000,000. For this reason, boundaries in this dataset may not perfectly align with DoD site boundaries in other federal data sources. Maps produced at a scale of 1:50,000 or smaller which otherwise comply with National Map Accuracy Standards will remain compliant when this data is incorporated. Boundary data is most suitable for larger map scales.