Census Tract/Block Numbering Area Outline Map Sample        G--4
County Block Map Sample                                     G--3
County Subdivision Map Sample                               G--5
Legend                                                      G--2
Map Descriptions                                            G--1
Terminology                                                 G--1

There are three map series that relate to the geographic entities for which
the Census Bureau provides statistics in the STF 3 CD-ROM files.  Copies of
these maps will be reproduced on electrostatic plotters in response to
orders received by Customer Services, Data User Services Division, Bureau
of the Census, Washington, DC 20233 (301) 763-4100.


County Block Maps--These maps depict each county on one or more map sheets
at various scales, depending on the county's areal size and the density of
the block pattern.  (Most counties include multiple map sheets, including
inset maps for densely settled areas.) The maps display block numbers and
feature identifiers as well as the boundaries, names, and codes for the le-
gal and statistical entities in the county.  Each county includes an index
map sheet that shows the locations of the map sheets comprising the county

Census Tract/Block Numbering Area Outline

Maps--These county-based maps depict the boundaries and codes of census
tracts or block numbering areas, the features and feature names underlying
the boundaries, and the boundaries and names of counties, county
subdivisions, places, and American Indian/Alaska Native areas.  Map scales
vary to minimize the number of sheets.  The maps may include one or more
insets for densely settled areas.  (The Census Bureau also intends to
produce printed versions of these maps, for sale by the Government Printing
Office (GPO), starting in 1992.)

County Subdivision Maps--These State-based maps depict the boundaries and
names of  all counties  and statistically  equivalent areas, county
subdivisions, and places.  (The Census Bureau also will publish 
sectionalized versions of these maps in most 1990 census reports.)


Refer to appendix A for an explanation of the types of areas.  Two terms
used in the legend require explanation:

Asterisk(*)--A symbol following a block number to indicate the block number
is repeated elsewhere in the block or is shown partially on an adjacent map
sheet or on an inset map.

Fishhook(   )--A map symbol drawn across a physical feature (creek,
brook, etc.) or boundary on census maps to show that the areas on both
sides of the feature or boundary belong to the same census block.