This is a comprehensive product which shows the total number of data layers that occurred within a given 10 sq. km. grid cell out of the 64 source datasets used in this analysis. Attribute fields include information on the total number of layers that have data occurring within each cell, as well as the number of layers that have data in each cell broken out by theme (Energy, Fishing, Maritime, Recreation, Security) and by different character types (Activity vs. Infrastructure). Additional descriptive information is available in the companion theme products.