Additionally, two perimeter measurements where calculated and stored in each state-specific boundary file before and after the USNG (1km) boundary intersecting the State border was split. Why? This improves quality control at the State boundaries with respects to duplicates and border cases. The national wide USNG (1km) boundary file reduced from about 10 million to 8 million. This reduced the size and number of USNG (1km) grids by approximately 20%. The unique or value-added enhancements made by USNG Solutions to the original (raw) USNG/MGRS boundary files includes intense processing time to compile, segment, and split each overlapping 1km grid at a State boundary then re-assigning the unique portion of that 1km grid into the corresponding two or more adjacent States. Note: Alaska is not included in this product. The entire USA boundary file consists of all 48 contiguous States, as well as Hawaii. Single use access to USNG 1km (0.6214 miles) boundary files can be licensed by State for ($495.00 per State) or the entire USA for $8,995.00. Note: This does not include online use or any derived products from the 1km baseline boundary or point files developed by USNG Solutions with exclusive distribution rights given to Enterprise Advice.
The following 1km (0.6214 miles) United States National Grid (USNG) boundary files in shape file format by State or for the entire USA can now licensed for single, multi, or unlimited use.