Miranda is the smallest of the five major moons of Uranus
In spite of this, it has the highest cliff in the solar system, Verona Rupes.
The cliff is 10-15 km high, making it the highest of similar structures in the solar system. That’s much higher than the walls of the Grand Canyon on Earth.
Given the small size of Miranda, its height is particularly surprising: about 3% of the satellite's diameter.