Original and Derivative DRG Data Available in Combinations of Projection and Format

Original USGS Digital Raster Graphic (DRG) files

As distributed by USGS

TIFF format

In default projection (UTM 15 or 16 as applicable)

In default datum (NAD27 or NAD83 as applicable)

Includes collar information

Tiled topographic map images in UTM16 projection, NAD83

TIFF format

Entire state cast on UTM Zone 16 projection and NAD83 datum

Collar information has been cropped off

Images can be tiled side by side

Availability Matrix:

Projection and format	1:24,000 scale	1:100,000 scale	1:250,000 scale
Original	Available	Available	Available
Tiled UTM 16	Available	Available	Available