The Milseburg is an extinct volcano and at 835 metres (2,740 ft) above sea level the second highest elevation in the Hessian part of the Rhön Mountains, Germany.

The Milseburg is located in the municipality of Hofbieber, east of Fulda in the Rhön hills of Hesse, Germany.

[1] The headwaters of the creek Bieber, a contributor to the Haune are located immediately to the south of the Milseburg.

[1] The main fortification was a 1,300 metres (4,265 ft) long stone wall that surrounded the north, east and south sides of the hill at its base.

As a result, when the nearby railway line was built in 1896 most of the wall to the north and northeast was removed and used to make gravel.

[2]: 375 Research on the Milseburg included excavations by J. Vondreau (1863–1951) and the Landesmuseum Kassel (J. Bohleau, G. Eisentraut, W. Lange) in the years between 1900 and 1906.

This "village" yielded various findings from the La Tène period, but no information on the possible type of house erected on the circular plans was discovered.

Although only very limited in scale, the excavations yielded several hundred pounds worth of pottery shards.

[2]: 375 One of several different versions of a Christian legend claims that the giant "Mils" who had allied himself to the devil used to live here.

The devil then built a cairn for him with stones that outlined the giant's shape, feet to the north, head to the south.

[1] The Milseburg also features Germany's longest cycling tunnel, a former part of the Rhönbahn [de] railway.