Night Light of Spearfish (South Dakota) from space (United States) Src. Average luminocity for 10x10km area is 22.7413% and for 50x50km: 2.2683%.
Square area 10x10 km:
Square area 50x50 km:
Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
44° 59' 24.9" North, 104° 33' 45" West
44° 29' 27" North, 103° 51' 33.7" West
43° 59' 13.5" North, 103° 9' 22.5" West
Some cities around Spearfish sort by population:
• Rapid City
67.7 km =42.1 mi, 132°
• Gillette
132.4 km =82.3 mi, 260°
• Box Elder
75.7 km =47 mi, 123°
• Rapid Valley
74.1 km =46 mi, 129°
• Sturgis
29.2 km =18.1 mi, 107°
• Douglas
228.2 km =141.8 mi, 212°
• Chadron
197.2 km =122.5 mi, 159°
• Belle Fourche
20.1 km =12.5 mi, 1°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016