Hiking in Hokkaido

Anyone knows of transport to and fro for the following trails:

1. Mt Usu-zan (going from Lake Toya)
2. Mt Kamui-dake (going from Sapporo)
3. Mt Hakken-zan (going from Sapporo)
Thank you

http://www.japan-guide.com/e/e6726.html#/section_getThere

public transportation to Kamuidake in Sapporo:
take 　快速7　or　快速8　bus at Sapporo station and get off at 百松橋
bus stop at Sapporo Station:
http://www.jotetsu.co.jp/bus/name_search_201604/images-busstop/sapporo...
route map:
http://www.jotetsu.co.jp/bus/name_search_201604/images-busstop/rosenzu...
time table：
click 定山渓「じょうざんけい」and see pdf 快速７　or　快速8
http://www.jotetsu.co.jp/bus/name_search_201604/3_sa_line.html
photos of Kamuidake:
http://homepage2.nifty.com/maasa/climbing/kamui/accses%20page2.htm
http://www5a.biglobe.ne.jp/~yahho/kamuidake.htm

Thank you Cherry