Location map of Riau, Indonesia
Geographic Coordinate System WGS 1984 (EPSG: 4326)
Equirectangular Projection
Geographic limits of the map:

N: 3.4193872° N
S: 1.622532° S
W: 99.3987703° E
E: 104.4406895° E
Map data from http://tanahair.indonesia.go.id
Own work
Mandamaruta