Southern Mountain Range.
Every few mud hours in room 30 (on the third image), the east exit becomes a mutual exit to Scourge of Time. This exit will only work for one char, once each reboot.
You can make some very nice items in the town of Edel.
( 6s, ne, 2s, se, 2e ) to get from DH to the room marked in blue (middle-right).
Alternatively, walk ( 8w, sw, s, 2sw, s, w, se ) to get to the room marked "10", just below this bit of text here.