THIS COVERAGE HAS BEEN PROJECTED TO THE FOLLOWING PARAMETERS - September 1999:

Projection:	UTM
Zone:		12
Units:		meters
Datum:		NAD83	(previously NAD27)
Spheroid:	GRS80	(previously Clarke 1866)


 

THE FOLLOWING IS THE ORIGINAL DATA DOCUMENTATION FROM ARIZONA LAND INFORMATION
SYSTEM (ALRIS at http://www.land.state.az.us/alris/alrishome.html ),
PHOENIX, ARIZONA, CONTACT NAME: Jim Riedman



NAME OF DATA SET:  AZTOWNS

DATA TYPE:  Vector; Point

DESCRIPTION OF CONTENT:
     This coverage contains point locations of various
 cities and towns throughout Arizona.

FORMAT:  Arc/Info

DATA SIZE:                   Data Set  7.5' quad
Approximate Megabytes:         .12       -

HISTORY:
     Digitized from a 1:1,000,000 scale ADOT map.

MAINTENANCE:  NONE

UPDATE NOTICE:  This coverage was updated in the summer of 1997 to increase the positional accuracy of the points.  A County column was also added to the attribute table.

PROJECTION:  NAD 27, UTM Zone 12 

ITEMS:
Item name:   AREA
Description: The value of each polygon in square meters
Format:      4,12,F,3
Code table:

Item name:   PERIMETER
Description: Perimeter of the polygon arcs in meters
Format:      4,12,F,3
Code table:

Item name:   AZTOWNS# 
Description: This is a unique internally assigned identification number 
             for each polygon
Format:      4,5,B
Code table:

Item name:   AZTOWNS-ID
Description: User assigned identification number for each polygon
Format:      4,5,B
Code table:

Item name:   AZTOWNS-NAME 
Description: Town names
Format:      20,20,C
Code table:

Item name:   AZTOWNS-SOURCE
Description: Map source
Format:      30,30,C
Code table:

Item name:   POPULATION
Description: Population of towns
Format:      7,7,I  
Code table:

Item name:   POP-SOURCE
Description: Source of population statistics
Format:      20,20,C
Code table: