Mariina skála (German: Marienfels) is a 428 m rocky hill in the Czech Republic, located in the region of Bohemian Switzerland not far from Jetřichovice.

In 1856 a wooden refuge hut was erected on the hilltop by Ferdinand Bonaventura, 7th Prince Kinsky of Wchinitz and Tettau, that acted as a fire observation tower.

In the night of 9 September 2005 the hut was badly damaged by a forest fire.

Another forest fire in the area of the Marienfelsen occurred on 22 July 2006.

The Kinsky family did a lot of work in the 19th century in opening up the rock landscape around Jetřichovice.