It is located on the border between the states of Rio de Janeiro and Minas Gerais.

The highest point is the Black Needles peak (Pico das Agulhas Negras).

The lower part of the park has lush Atlantic Forest vegetation and wide rivers with natural pools and waterfalls.

[2] The Pico das Agulhas Negras is the state' third highest mountain at 2,878 metres (9,442 ft).

The low area of the park is much closer to the city of Itatiaia and has many waterfalls, such as Véu da Noiva with 45 meters.