Since the Ancient Age, Nakasendo-Kisoji had been the key traffic apparatus connecting east with west and south with north in mainland in Japan, with the rich forest resources as well.
  Above all the wood-timber was the decisive military resource in order to build the fortress and castles.
  Therefore dominating this area was inevitable to gasp the key transport-means and the circulation channel of the forest-resources, thus to get the military predominance.

  In 1590 Toyotomi dynasty got the hegemony when it put Kiso area and Nakasendo under their direct control.
 Tokugawa Ieyasu who won the Battle of Sekigahara in1600, beginning to construct the Shogunate government, integrated Kiso area into the Shogunate-fief. The Yamamuras who dominated Kiso area, as a chieftain, was nominated as magistrate of the fief by Ieyasu.

  In time the area would be incorporated into the fief of the Owari-Lord when te regime of the Shogunate administration was established. Then the Yamamuras would subject to the lord.
  The Chiefs of the Stage-Towns were to bring out the appeal or the reportage concerning the Kaido-traffic matters through magistrate Murayama to the Lord of Owari or the Shogunate government.

  The government of the Owari clan were controling strictly the forests of Kiso area, managing planting and cutting trees of the area on the base of afforestration-plans. Thus they could keep the continuing fiscal-revenues by selling the timber. The all rights of cutting and selling trees in Kiso area were monopolized by the Tokugawa dynasty.