Grząby Bolmińskie - the Świętokrzyskie mountains range, built of chalk and Jurassic rocks

The Świętokrzyskie Mountains range, built of chalk and Jurassic rocks. It is about 5 km long.

From the west it is limited by the Łosośna gorge, and from the east by the Hutka gorge. In the north-western part of the range, a Milechowy reserve was created, partially covering the foreste hills: Góra Bolmińska   (313 m), Góra Brodowa (326 m) and the highest in the range, Góra Milechowska (335 m).