Měděnec, Mountain summit in Liberec District, Czech Republic

Měděnec is a conical summit of 777 m in the Libverda Highlands, part of the Jizera Mountains, 2.5 km southeast of Nové Město pod Smrkem in Liberec District. Its western and southern slopes drop steeply to the saddle of the Ztracený potok, and no buildings stand on its slopes; only a small wooden lookout tower once stood on the top.

Tin mining around Nové Město pod Smrkem began in 1576, and in the 1580s the Redern family brought miners from the Krušné hory and Tyrol, who opened seventeen adits on Měděnec, including Erasmus and Petr a Pavel. By 1622 seventy mining works existed, but after the Gallas family took over, yields fell and miners turned to sawmills and textiles.

The mountain's German name, Kupferberg, means "copper mountain", yet the ore mined here from the 1570s was mainly tin, worked into bowls, plates, candlesticks and even coffins. Legend places the Berggeist, a mine overseer's ghost, in the abandoned adits, warning miners of disaster.

Wear sturdy shoes and bring layers, as the higher elevations can be windy and cool even in warmer months. The best hiking season runs from late spring through early autumn when the trails are dry and safe.

The summit once carried a small wooden lookout or observation tower, probably a first-order trigonometric signal tower, still standing during World War II. No path leads directly to the top today, though forest tracks on the slopes are used by the Singltrek pod Smrkem trail network.