Night Light of Four Corners (Maryland) from space (United States) Src. Average luminocity for 10x10km area is 92.2614% and for 50x50km: 78.0472%.
Square area 10x10 km:
 34.74%
 34.74% 31.98%
 31.98% 18.99%
 18.99% 10.71%
 10.71% 3.57%
 3.57% 0%
 0% 0%
 0% 0%
 0% 0%
 0% 0%
 0% 0%
 0%Square area 50x50 km:
 25.13%
 25.13% 19.54%
 19.54% 10.6%
 10.6% 13.13%
 13.13% 10.36%
 10.36% 7.92%
 7.92% 4.52%
 4.52% 3.69%
 3.69% 2.51%
 2.51% 1.96%
 1.96% 0.63%
 0.63%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
39° 33' 52.4" North, 77° 42' 57.2" West
39° 1' 13.4" North, 77° 0' 45.9" West
38° 28' 19.2" North, 76° 18' 34.7" West
Some cities around Four Corners sort by population:
• Silver Spring
		3.5 km =2.2 mi,  199°
199°
• Wheaton
		4.3 km =2.7 mi,  300°
300°
• Langley Park
		4.4 km =2.7 mi,  142°
142°
• White Oak
		2.8 km =1.7 mi,  38°
38°
• Adelphi
		4 km =2.5 mi,  118°
118°
• Kemp Mill
		2.1 km =1.3 mi,  345°
345°
• Forest Glen
		3.7 km =2.3 mi,  259°
259°
• Hillandale
		3.4 km =2.1 mi,  78°
78°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016