Ostrowiec Świętokrzyski is in Świętokrzyskie. The city formed part of the Old-Polish Industrial Region, the oldest industrial basin of the country.
East of the town there are four historical sites related to mining, which together make up the world heritage site Krzemionki prehistoric striped flint mining region:
- Krzemionki Opatowskie Mining Field.
- Borownia Mining Field.
- Korycizna Mining Field.
- Gawroniec Settlement.
Krzemionki Opatowskie Mining Field.
Borownia Mining Field.
Korycizna Mining Field.
Gawroniec Settlement.