The province was bordered by the Enju (As1) and Aoijiroi provinces (Is5) to the North, by the Isawa Mori and the Yogen province (As4) to the East and South, by the Nanimo province (Sh2) through a small piece of land in the South. The Iron Rings Cascade separated it from the Ki-rin province (As2) to the West. 
The sources relating to this article are in conflict with each other.
|Legend of the Five Rings; Fourth Edition page 372 claims Pale Oak Castle as part of this Asako province, but Secrets of the Phoenix page 46 claims Aojiroi Oku Shiro as an Isawa family holding, and part of the Aoijiroi province. Oni no Pikachu (talk) 09:53, January 6, 2014 (UTC)|
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