Reference : 6830.09,6830.10,6830.11,6830.12,6830.13,6830.14

Name of creator(s) : Keyes, Charles F.

Scope and content : Amphoe Muang Mae Hong Son, Changwat Mae Hong Son, Thailand,east=98.006073; north=19.288623

Extent and medium : Slide ดูเอกสารต้นฉบับ