Sanada Castle (真田城) is a ruins of Castle located in Ueda, Nagano prefecture. It was built in early 16th century by Sanada clan. It was former castle of Sanada before Ueda castle. It is typical mountain castle with U-shape surrounded by cliffs. The samurai houses were located on the open side. At the top, you can see great view of Sanada Town.
Tourist Info.
There is a parking.
Access
0. at Nagano Station
1. use Shinano Line to Ueda (42 min.)
2. use local bus to jurinji kominkan
3. walk east (30 min.)
45 min
New Wave Samurai Movie. 
映画好き集まれ！ 
Type: Mountain
Built in: 1532 to 1555.
Class: Ruins
Sanada Yukitaka offered his service to Takeda Shingen and became one of the 24 samurai of Shingen. After fall of Takeda clan, his son Masayuki, the father of Yukimura, worked Oda Nobunaga, Hojo Ujiyasu, Uesugi Kagekatsu, and Tokugawa Ieyasu. Masayuki became Daimyo under Toyotomi Hideyoshi, and build new castle at Ueda. After that, this castle was deserted.