Mordor was a black, volcanic plain in the southeast of Middle-earthto the east of Gondor, Ithilien, and the great river Anduin. Mordor was chosen by Sauron as his realm because of the mountain ranges surrounding it on three sides, creating a natural fortress against his enemies.
Yes, Martin, it's a part of the Dolomites I had not visited & nice to be travelling after 2 yrs of enforced staying at home. I did a great hut-to-hut trip there.