Tsumago Mountain Lodge, completed in 1982, stands as a notable residential work by architect Keiatsu Nishimoto. Located in Tsumago Village, Agatsuma District, Gunma Prefecture, this mountain retreat exemplifies thoughtful design principles suited to its alpine setting. The structure demonstrates Nishimoto's architectural philosophy through its integration with the natural landscape and contemporary residential design sensibilities of the early 1980s. This residence represents an important example of residential architecture from that period, showcasing how modern design elements can harmonize with mountain environments while meeting the practical needs of a weekend or seasonal dwelling.