Kanna River

Overview

The Kanna River is a tributary of the Karasu River within the Tone River system, flowing through Gunma and Saitama Prefectures. Roughly 87 kilometers long, it threads through the mountains, nurturing clear water and gorge scenery. Because it crosses a prefectural border, it links the nature and daily life of both prefectures, and it offers different faces along its length: untouched mountains upstream and open riverbeds downstream.

Highlights

• ●A roughly 87-kilometer course linking Gunma and Saitama
• ●Mountain gorge scenery spreading across the upper reaches
• ●Clear water befitting a tributary of the Karasu River
• ●Varied scenery that changes from upstream to downstream

History

As a secondary tributary of the Karasu River in the Tone system, the Kanna River has carved the land of both Gunma and Saitama over long ages. Flowing from upstream mountains down to the plains, it has shaped gorges and riverbeds, and has been deeply connected with the water supply and industry of the communities along it. For detailed history and local culture, please refer to on-site guides and official information.

Map

36.2785, 139.1358 · Wikidata

Suggested itinerary

1. 1Drive along the Kanna River following the prefectural border
2. 2Gaze at the clear flow and mountain ridges in the upstream gorge
3. 3Stroll or rest by the water on the downstream riverbed
4. 4Round off the trip at nearby sights and eateries

Did you know?

💡 Because the Kanna River flows along the border of Gunma and Saitama, it is cherished as a river that connects the nature of the two prefectures. Along its long course of about 87 kilometers, the scenery changes dramatically from upstream gorges to broad downstream riverbeds.

Nearby spots