The fossil-bed Reservation of Chiuzbaiais a national protected area of the 4th category. It is a paleontological natural reservation situated in the Maramures County, in the administration of the town of Baia Sprie.
Situated on the south wall of the Ignis Peak, between the Valley of the Poplars and the cliff called “Spyridon’s Church”, the reservation has 50 hectares.
The "Răzvan Givulescu" fossil-bed Reservation of Chiuzbaia stocks the relict structures of some lakes where there are stored vegetal remains of a luxury forest dated before the appearance of the human on earth.
The richness of the fossil material and the species make the flora of Chiuzbaia be unique in the south-east part of Europe.