Tupadelské skály, Natural monument near Tupadly, Czech Republic.

Tupadelské skály is a natural monument protecting one of the largest and southwesternmost outcrops of the Barrandian Proterozoic buližník belt: black to dark-grey deep-sea silicites forming a 230-metre-long, roughly 20-metre-wide rock group on the southern edge of Tupadly. Narrow strips of stone seas border the rocks on the southwest.

The rocks are a protected natural monument, registered as site no. 455 and administered by the Czech Agency for Nature Conservation and Landscape Protection. After 1784 the horror novelist Christian Heinrich Spiess, who had come to manage Count Künigel's Bezděkov estate, settled in a hermitage among these rocks; old tourist guides call them Spiessovy skály, Spiess's Rocks.

After 1784 the horror novelist Christian Heinrich Spiess lived as a hermit among these rocks, which he used as the setting for his writing and where he is said to have laid out an artificial cemetery. Old tourist guides call the site Spiessovy skály, Spiess's Rocks.

The rocks lie on the southern edge of Tupadly, four kilometres west of Klatovy, in the Švihovská vrchovina highlands. The protected strip is about 230 metres long and roughly 20 metres wide, with narrow bands of stone seas along its southwestern margin.

The rocks are one of the largest and southwesternmost outcrops of the Barrandian Proterozoic silicite belt, measuring 230 m long and about 20 m wide. Old tourist guides called them Spiessovy skály (Spiess's Rocks) after the horror writer Christian Heinrich Spiess, who built a hermitage here after 1784.