It has an area of 2,634 km2 (1,017 sq mi) and an average elevation of 552 metres (1,811 ft).

The Švihov Reservoir is built on the Želivka and is the largest body of water in the Křemešník Highlands.

In addition to the Želivka and Nežárka, other notable rivers that originate in the territory are the Jihlava and Blanice.

The geological bedrock mainly consists of the metamorphic rocks – gneiss and granite.

In the south, the geological composition blends with the neighbouring Třeboň Basin, and there are occasionally also clays, sands and gravels.