Obora Fláje, Game reserve in Český Jiřetín, Czech Republic

Obora Fláje is a game reserve of 1,932 hectares on a plateau in the Krušné hory at an average elevation of 850 metres, in the Most district of the Ústí nad Labem region. It lies south of the Fláje reservoir, is bounded west by the Fláje–Klíny road, reaches the Šumný důl valley in the south and touches the Teplice district to the east. Its highest point is Loučná at 956 metres, its lowest the fence in Šumný důl at 580 metres; the reserve is enclosed by a high fence.

The Valdštejn family established the reserve in the 18th century, after Count Emanuel Filibert Valdštejn built the Lichtenwald hunting lodge between 1761 and 1767 below Bradáčov hill. The first precise figures date from 1848, when the reserve covered 3,760 hectares and held 650 red deer, including imported wapiti. The state confiscated it in 1923 during land reform and assigned it to the Ministry of Agriculture.

The reserve's name comes from the village of Fláje, and locals also call it Flájská obora. A 5 km Zámecká alej links the Lichtenwald hunting lodge with the Jiřího návrší hunting hut (864 m) in the middle of the reserve; the main gate stands on this alley northwest of the enclosure.

Access is limited to designated Open Gate Days when the public can visit on marked trails by foot or bicycle. Plan ahead by checking when these visiting days occur, as the reserve is otherwise closed to visitors.

The reserve is not open to the public: since 2013 even the former summer access has been closed, and the main gate stands on the 5 km Zámecká alej linking the Lichtenwald lodge with the Jiří návrší hunting hut (864 m). The protected capercaillie population is one reason access stays restricted.