Ryūmon Falls, Two-tiered waterfall in Kokonoe, Japan.

Ryūmon Falls is a two-tiered cascade in a mountainous area with water dropping across multiple levels. The water flows down in distinct stages, creating a complex system of drops and streams within the forest.

The falls were named Ryūmon after the Dragon Gate of the Yellow River's upper reaches by Rankei Dōryū, a Song-dynasty monk who came to Japan in the Kamakura period. He founded Ryūmon-ji temple at the site. The name likens the two-tiered drop to that Chinese rapids.

The name comes from the Zen monk Rankei Dōryū, who arrived from Song China during the Kamakura period and saw a resemblance to the Dragon Gate of the Yellow River's upper reaches. He named the falls and founded Ryūmon-ji temple on the site. In summer, children slide down the smooth second cascade, a local seasonal sight.

The falls lie on the Matsuki River in Kokonoe, with the Ryūmon Falls campsite and Uesugi campsite set up nearby and Ryūmon Onsen welling up in the vicinity. The Matsuki Dam stands upstream. The second tier is smooth and slippery, so watch footing on the wet rock, especially where children slide down in summer.

The formation is part of a large lava plateau that gives the region special geological character. This volcanic origin makes it a notable example of Japan's diverse natural landscapes.