It lies on the border between the Iron Mountains and Central Elbe Table.
The highest point is the mountain Bučina at 606 m (1,988 ft) above sea level.
In 1816, an ironworks was established, which led to an increase in the population.
[4] Třemošnice is the starting point of the railway line to Čáslav.
The late Baroque Třemošnice Castle is privately owned and its interiors were converted into apartments.