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26 Glen Canyon unit, Lake Powell topography: sheet 557-414-1061960Image/StillImage
27 Glen Canyon unit, Lake Powell topography: sheet 557-414-1071960Image/StillImage
28 Glen Canyon unit, Lake Powell topography: sheet 557-414-1081960Image/StillImage
29 Glen Canyon unit, Lake Powell topography: sheet 557-414-1091960Image/StillImage
30 Glen Canyon unit, Lake Powell topography: sheet 557-414-1101960Image/StillImage
31 Glen Canyon unit, Lake Powell topography: sheet 557-414-1111960Image/StillImage
32 Glen Canyon unit, Lake Powell topography: sheet 557-414-1121960Image/StillImage
33 Glen Canyon unit, Lake Powell topography: sheet 557-414-1131960Image/StillImage
34 Glen Canyon unit, Lake Powell topography: sheet 557-414-1141960Image/StillImage
35 Glen Canyon unit, Lake Powell topography: sheet 557-414-1151960Image/StillImage
36 Glen Canyon unit, Lake Powell topography: sheet 557-414-1161960Image/StillImage
37 Glen Canyon unit, Lake Powell topography: sheet 557-414-1171960Image/StillImage
38 Glen Canyon unit, Lake Powell topography: sheet 557-414-1181960Image/StillImage
39 Glen Canyon unit, Lake Powell topography: sheet 557-414-1191960Image/StillImage
40 Glen Canyon unit, Lake Powell topography: sheet 557-414-1201960Image/StillImage
41 Glen Canyon unit, Lake Powell topography: sheet 557-414-1211960Image/StillImage
42 Glen Canyon unit, Lake Powell topography: sheet 557-414-1221960Image/StillImage
43 Glen Canyon unit, Lake Powell topography: sheet 557-414-1231960Image/StillImage
44 Glen Canyon unit, Lake Powell topography: sheet 557-414-1241960Image/StillImage
45 Glen Canyon unit, Lake Powell topography: sheet 557-414-1251960Image/StillImage
46 Glen Canyon unit, Lake Powell topography: sheet 557-414-1261960Image/StillImage
47 Glen Canyon unit, Lake Powell topography: sheet 557-414-1271960Image/StillImage
48 Glen Canyon unit, Lake Powell topography: sheet 557-414-1281960Image/StillImage
49 Glen Canyon unit, Lake Powell topography: sheet 557-414-1291960Image/StillImage
50 Glen Canyon unit, Lake Powell topography: sheet 557-414-1301960Image/StillImage
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