This is not the only locomotive in the area: The Felsőtárkány Narrow-Gauge Forest Railway lies to the north of Eger and was built in 1915. Today, it is a very popular tourist destination, as it takes visitors to the Szikla and Vöröskő springs, and the wildlife park in the Egres Valley. The Mátravasút runs on the line between Gyöngyös and Mátrafüred, and has a first-class cushioned carriage that takes visitors to the 370-metre-high Kozmáry lookout tower, the valley of the Szén stream and to Bába Stone. There is another route of the Mátravasút from Gyöngyös to Szalajkaház. It's a 13 km long journey through the woods along a stream. The Lillafüred narrow-gauge railway was used back as far back as 1923 to transport passengers, while the mountain track crosses Mélyvölgy bridge, the largest narrow-gauge railway bridge in the country.