
Guide
The Omine Kogen Nanairo Dai Kaede is a highly distinctive giant maple tree located in Ikeda Town, Kitaazumi District, Nagano Prefecture. The greatest charm of this site lies in the changing colors of its leaves as the seasons shift. During the autumn foliage season, you can observe a breathtaking spectacle where green, yellow, and red coexist within a single leaf, creating a multi-colored landscape that lives up to its name, 'Nanairo' (Seven Colors).
This giant maple is cherished as a precious natural heritage of the local area. While there are various theories regarding its exact age, it has long been a symbol of the local natural landscape. The tree plays a vital role in connecting visitors to the seasonal beauty of the changing environment.
The primary highlight is the dramatic color transition of the leaves during autumn. From mid-October to early November, you can observe the exquisite gradation as leaves change from green to yellow and finally to deep red. The landscape changes completely with the seasons: in winter, the tree is draped in snow, while in spring, it displays a vibrant, life-filled burst of fresh green leaves.
Each season offers a unique experience, but the most highly recommended time to visit is from mid-October to early November when the autumn colors are at their peak. This is when the unique phenomenon of multi-colored leaves is most visible. While spring offers fresh greenery and winter provides a serene snowy landscape, the stable weather of autumn daytime is ideal for observing the foliage.
The main activity here is nature observation. Spending time in the quiet surroundings to watch the growth of the giant tree and the subtle shifts in leaf color offers a profound sense of connection with nature. Visitors can enjoy photography (subject to rules) and peaceful walks through the changing scenery.
The Omine Kogen area is a beautiful natural region in Nagano. It offers easy access to the Azumino area, where you can find various nature-rich sightseeing spots and local restaurants serving seasonal ingredients. It is an excellent destination to include in a scenic driving route.
Please observe the following guidelines during your visit: