The Jonha Falls is a waterfall located in 40 kilometres from Ranchi, Jharkhand. Jonh Falls is also called Gautamdhara Falls. Jonha Falls is perfect example of a hanging valley falls.

There is a tourist rest house which encloses a Buddhist shrine with a deity of Lord Gautama Buddha. A temple and an ashram dedicated to Buddha was built atop Gautam Pahar by the sons of Raja Baldevdas Birla. A fair is organized in every Tuesday and Saturday.

The Jonha Falls is an example of a nick point caused by rejuvenation. Knick point, also called a nick point or simply nick, represents breaks in slopes in the longitudinal profile of a river caused by rejuvenation. The break in channel gradient allows water to fall vertically giving rise to a waterfall. The Gunga River hangs over its master stream, Raru River and forms the falls. One has to descend 722 steps to admire the surroundings. Water in the falls drops from a height of 43 metres (141 ft).