Night Light of La Grand-Croix (Auvergne-Rhône-Alpes) from space (France) Src. Average luminocity for 10x10km area is 37.1952% and for 50x50km: 21.9391%.
Square area 10x10 km:
 8.25%
 8.25%
 2.54%
 4.44%
 4.13%
 3.97%
 3.65%
 2.22%
 5.87%
 41.59%
 15.08%Square area 50x50 km:
 4.02%
 4.55%
 1.91%
 2.03%
 2.53%
 2.7%
 2.95%
 2.72%
 7.55%
 14.66%
 54.39%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
45° 59' 40.1" North, 3° 51' 21.7" East
45° 30' 13.8" North, 4° 33' 32.9" East
45° 0' 32" North, 5° 15' 44.2" East
Some cities around La Grand-Croix sort by population:
• Saint-Étienne
		15.3 km =9.5 mi, 
239°
• Saint-Chamond
		4.8 km =3 mi, 
229°
• Rive-de-Gier
		5.1 km =3.2 mi, 
59°
• Sorbiers
		9.3 km =5.8 mi, 
261°
• La Talaudière
		10.8 km =6.7 mi, 
253°
• Saint-Jean-Bonnefonds
		10.5 km =6.5 mi, 
239°
• Saint-Priest-en-Jarez
		14.6 km =9.1 mi, 
256°
• Mornant
		15.5 km =9.6 mi, 
34°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016