Prisoners led by TSUKIGATA proceeded the reclamation effectively, and the prototype of the roads that later became the main roads in Hokkaido such as National Route 12 was formed by them.
月形の指揮する囚人達は効率よく開拓を進め、後に国道12号等北海道の主要道路とされるものの原型は彼等が作った。