JPG File 64.9M

Figure 3.1
(A) The Greater Chicago area as photographed in 1973 and 1996 (NASA photograph SL3-46-199 and NM21-767-068). Small arrows indicate Merrill C. Meigs Field use for scale. (B) Dallas and Fort Worth in 1969 and 1996 (NASA photograph AS9-21-3299 and NM22-774-019). Small arrows indicate the Dallas/Fort Worth International Airport use for scale. (C) Las Vegas in 1973 and 1996 (NASA photograph SL3-28-59 and NM22-725-034). Small arrows indicate McCarran International Airport used for scale.