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University of Connecticut University Libraries MAGIC

MAGIC File Naming Conventions

These code values are adapted from the Library of Congress's geographic naming tables:

Code Geography
370[ 0-9 ] United States
371[ 0-9 ]
    Northeast Atlantic
372[ 0-9 ]
      New England
373[ 0-9 ]
      • Maine
374[ 0-9 ]
      • New Hampshire
375[ 0-9 ]
      • Vermont
376[ 0-9 ]
      • Massachusetts
377[ 0-9 ]
      • Rhode Island
378[ 0-9 ]
      • Connecticut
379[ 0-9 ]
    Middle Atlantic
380[ 0-9 ]
    • New York

The digit in brackets [0-9] above can be one of the following:

Code Geography Type
0 Regional Geographies
1 Mathematical Geographies
2 Physical Geographies
3 Major Administrative Geographies
4 Minor Administrative Geographies
5 Designated Geographies
6 Census Geographies
7 Reserved
8 Reserved
9 Reserved

Now we extend the codes for particular types of geographical definitions, loosely based on the Library of Congress. Think of these as the cookie cutter shapes that make the coverage boundaries. The following example is for 378[0-9], Connecticut.

Code Geography
3780[x] Regional Geographies - Connecticut
  37800   State Coverages
3781[x] Mathematical Geographies - Connecticut
  37810   USGS 3.75 Minute Quarter Quadrangles
  37811   USGS 7.5 Minute Quadrangles
  37812   USGS 30 x 60 Minute Quadrangles
  37813   USGS 1 x 2 Degree Quadrangles
  37814   Hartford Metropolitan District Commission
3782[x] Physical Geographies - Connecticut
  37820   Drainage Basins
  37821   Rivers, Streams (running water)
  37822   Lakes, ponds, marshes, swamps, reservoirs (still water)
  37823   Islands
  37824   Coasts and Continental Shelfs
  37825   Mountainous regions, mountain chains, hills, relief features
  37826   Roads, Pathways, Rail Lines, Gas Lines, Utility Passages
  37827   Sounds, Bays, Tidal Marshes (tidal water)
3783[x] Major Administrative Geographies - Connecticut
  37830   State Boundaries
  37831   County Boundaries
  37832   Congressional Districts
  37833   Voting Districts (House and Senate)
  37834   School Districts (Primary, Secondary, Middle, Unified)
  37835   Labor Market Areas
  37836   Planning Districts
  37837   Judicial Districts
  37838   Tourism Districts
  37839   Service Districts
3784[x] Minor Administrative Geographies - Connecticut
  37840   Towns and Townships
  37841   Town Planning and Zoning
  37842   Right of Ways
3785[x] Designated Geographies - Connecticut
  37850   Forests and Parks
  37851   Reservations
  37852   Military areas of operations, Military installations
3786[x] Census Geographies - Connecticut
  37860   State
  37861   County
  37862   Town/MCD
  37863   CDP
  37864   Tract
  37865   Block Group
  37866   Block
  37867   MSA/PMSA/CMSA

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369 Fairfield Rd U 2005M
Storrs, CT 06269
magic@uconn.edu
860-486-4589


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