Housle, Natural monument in Lysolaje, Czech Republic

Housle is a deeply cut erosion ravine in Lysolaje, western Prague, 250 metres long, 20 to 30 metres deep and lying at 290 to 310 metres above sea level. Its sandstone walls cut into Proterozoic rock topped by Upper Cretaceous marine deposits, and the protected area covers 3.8176 hectares.

The site gained protected status in 1982 as officials recognized its geological and ecological value. This designation ensured the preservation of its natural formations and ecosystems for the future.

The ravine's name, Housle, means "violin" in Czech, and in the first half of the 20th century amateur theatre companies staged performances in some parts of the gorge. A small orchard of pear, apple and cherry trees was planted in its middle section at the start of the 20th century.

Stay on marked trails and treat the landscape with care during your visit. The driest months offer easier access for walking and observing the site without disturbing its natural conditions.

The rock formations reveal layers from different geological periods, offering visible clues about millions of years of Earth's history. These natural layers make the site valuable for anyone curious about geology and how landscapes develop over time.