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Hi Cindi--
The National Ocean Service may be a lead, if an aerial photo will do.  They
have 890 of the largest airfields in the U.S., usually at a scale of
approximately 1:30,000. If an orthophotoquad will suit, try the nearest ESIC
or USGS office.
 
NOS address:
 
Support Section, N/CG236
National Ocean Service, NOAA
SSMC3, Station 5212
1315 East-West Highway
Silver Spring,  MD 20910
301-713-2692
 
Good Luck--Mary Rose Collins
 
*************************************
Mary Rose Collins
Collins Geographic
P.O. Box 42326
Cincinnati, OH  45242
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