The Altkönig is the third highest mountain of the Taunus range in Hesse, Germany, reaching a height of 798.2 m above sea level.Its summit is lies within the borough of Kronberg im Taunus not far from the village of Königstein im Taunus which is part of Falkenstein in the Hessian county of Hochtaunuskreis.
With an isolation of 2,450 metres and a prominence of over 136 metres above saddle at the Fuchstanz leading to the Kleiner Feldberg, the Altkönig is one of the most striking peaks in the Taunus. Together with the Großer Feldberg and Kleiner Feldberg it forms the crown of the High Taunus; unlike the Feldberg, however, it does not lie on the main ridge itself but rises to the south and parallel with it.
Wikipedia https://en.wikipedia.org/wiki/Altkönig
Address 61476, Germany
Coordinates 50°12'45.003" N 8°28'53.736" E