a closed ecological system.

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Mount Lemmon Ski Valley (9.97 mi / 16.05 km)
Catalina Honor Camp (Ruins) (18.25 mi / 29.38 km)
Casas Adobes Safeway supermarket parking lot (18.31 mi / 29.46 km)
Rillito Park Racetrack (20.86 mi / 33.58 km)
Arizona Stadium (24.87 mi / 40.02 km)
Carnegie Institution Desert Laboratory (26.40 mi / 42.49 km)
Pinal Airpark - aircraft boneyard (28.08 mi / 45.19 km)
Baseball fields (28.16 mi / 45.32 km)
MZJ Airport (28.17 mi / 45.33 km)
AMRC military airplane boneyard 1 (28.37 mi / 45.65 km)

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