These large scale, large format (36" x 33") maps depict the smallest geographic entities for which the Census Bureau presents data, census blocks. The recreated 1990 Census Block maps were produced for counties. All maps display the 1990 geography; however, the features displayed on these maps are those shown on the Census 2000 maps.

These maps show the boundaries and numbers of the 1990 census blocks as well as the named features underlying the boundaries. They also show the boundaries, names and codes for 1990 American Indian/Alaska Native areas, counties, county subdivisions, and places. The scale of the maps will be optimized to keep the number of map sheets for each area to a minimum, but the scale and number of sheets will vary by the area size of the county and the complexity of the census blocks.