The limited express train Shinano runs between Nagano (長野) and Nagoya (名古屋). When you go to Japan Northern Alps, take this train to Matsumoto (松本), and transfer to a local train on Oito line bound for Shinano-Omachi (信濃大町), Hakuba (白馬) and Minami-Otari (南小谷). And also this train goes through the Kiso vallery which has some small histrical post towns, such as Tsumago, Magome
Fall is very popular season to travel in Japan for local tourist too. JR Group operate lots of seasonal trains during this season and increase the number of trains. I show you seasonal trains information mostly for October and November, 2012 in this post. If you are looking for the information of seasonal train that is operated in September only, please see 2012 summer seasonal trains information.