They have an area of 748 km²,[1] their average height is 480,8 metres, and their highest peak is Pešava at a height of 697 metres[2] which is located exactly in the Sečská Upland, which is part of the Iron Mountains.

But other sources state that the highest peak is Vestec, at a height of 668 metres.

[3] The mountain's name originates from the past metal abundance of the region, as it was the site of many mines of iron.

On the first river the following artificial water reservoirs[6] are located: Seč I (the largest reservoir), Seč II, Křižanovice I, and Křižanovice II.

In the mountains and around the area are located several villages, towns and cities: Heřmanův Městec, Třemošnice, Chrudim, Slatiňany and Hlinsko.