The Jonha Falls also called Gautamdhara Falls is a waterfall located in Ranchi district in the Indian state of Jharkhand. Situated at an edge of the Ranchi plateau, the Jonha Falls is an example of a hanging valley falls. The Gunga River hangs over its master stream, Raru River and forms the falls. One has to descend 500 steps to admire the surroundings. Water in the falls drops from a height of 43 metres (141 ft).
The Johna 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 Jonha Falls is 40 kilometres (25 mi) from Ranchi. It is approachable by both road and train. Jonha Station is just 1.5 km from the fall. For travel by road, one has to take the Ranchi-Purulia Road and after travelling for about 20 miles (32 km) one has to travel about 3 miles (4.8 km) off the main road.