Reference : 6849.17,6849.18,6849.19,6849.20,6849.21,6849.22,6849.24,6849.25,6849.26
Name of creator(s) : Keyes, Charles F.
Scope and content : Amphoe Mae Sariang, Changwat Mae Hong Son, Thailand,east=97.770568; north=18.264741
Extent and medium : Slide ดูเอกสารต้นฉบับ