Viljandi Castle Park Sandstone Outcrop

The Viljandi Castle Park Sandstone Outcrop lies in the heart of the town, on the southern edge of the Castle Hills. Sandstone from the Middle Devonian period is exposed at the surface here, revealing the area's geological history. The outcrop is up to about six metres high and roughly eighteen metres long. Nearby is a spring with a protective shelter built over it. It is a natural attraction in its own right within the historic park, not part of the castle walls. The outcrop can be viewed on a walk, but to protect the fragile rock surface and the surrounding nature it is best to keep to the designated paths.