
1) Mountain of Lower Saxony
Found on
https://www.crosswordclues.com/clue/hasselkopf

Hasselkopf is a mountain on the southern periphery of Braunlage, Germany. It is 612 m high. The hill is mostly covered in grass and undeveloped, but its northern slope has a short ski lift and can be used for downhill skiing in the winter months. On 1964-05-07 the hill was used by Gerhard Zucker to demonstrate the use of mail rockets. One exploded...
Found on
http://en.wikipedia.org/wiki/Hasselkopf
No exact match found.