Hill of Srin

The Hill of Srin was a hill on Arus whose distinguishing feature was a single large, flat rock on the top that was large enough to be similar to a chair. As mentioned by Allura McCoy in Glass Life, she and Michelle Lovitz would walk there most days to simply unwind, talking about various things. It was on this hill that they encountered Mew, in 2444.

Another hill by the same name appears in Last Peace, although here it is closer to a cliff. Notably, the large rock is present, hinting that this may be the hill that had been destroyed along with the rest of Dimension #2 in the "canon" timeline (i.e., before the Doctor changed history by killing Lavos; History Is Immobile).