Gibraltar:
total: NA km; 1.000-m gauge system in dockyard area only
Greece:
total: 2,548 km
standard gauge: 1,565 km 1.435-m gauge (36 km electrified; 23 km
double track)
narrow gauge: 961 km 1.000-m gauge; 22 km 0.750-m gauge (a
rack-type railway for steep grades)
Greenland:
0 km
Grenada:
0 km
Guadeloupe:
total: NA km; privately owned, narrow-gauge plantation
lines
Guam:
0 km
Guatemala:
total: 884 km (102 km privately owned)
narrow gauge: 884 km 0.914-m gauge (single track)