Horní Malše, Natural monument in Dolní Dvořiště, Czech Republic.

Horní Malše is a protected natural area near Dolní Dvořiště with diverse habitats that span along the river and surrounding forests. The site contains rare plant species and animals adapted to the wet environment characteristic of this landscape.

Horní Malše was declared a protected natural monument to conserve species such as the freshwater pearl mussel, thick-shelled river mussel, river lamprey and Eurasian otter. The area, covering 1,890.85 hectares between 540 and 1002 metres, is part of the Natura 2000 network.

The Malše river gives the monument its name; the German name Obere Maltsch is still used. Above Cetviny the protected zone covers the river's entire spring area on the Czech side, overlapping with the Novohradské hory nature park.

Visitors can explore the area using marked trails while observing the natural surroundings from designated routes. It is important to stay on marked paths and follow guidelines that help protect the local plants and wildlife.

The pearl mussel (Margaritifera margaritifera), a species that can live for over a century, is among the animals the monument was declared to protect, alongside the thick-shelled river mussel and the river lamprey. The upper Malše zone above Cetviny overlaps with the Novohradské hory natural park.