Why are they here when they were not in Bloodmoon?

Funny that you posted this right after I posted mine. I'll call it an honest mistake but it's not good forum manners.

My bad did not see yours

Meh it happens. Hopefully we get an answer in one of our threads.

They could have been underground and the eruption of Red Mountain shifted the crust a revealed some?

doesnt matter now, by posting here you promoted his. looks like you made the threads close enough for it to be fair game. bad manners? XD

anyway, someone help? the dwemer are highly capable of building wherever they want.

i chalk it up to them re-imagining the landscape. its the same reason its so jarring to see the nordic ruins in the skyrim style, i always assumed the nords before the skaal built crude barrows, not the masterwork labyrinths of the dragon cult. [but thats off topic]
new lore, new landscape for a familiar area.

The Dwemer are gone so re-imagining the land as you say would not be possible. Please understand and by promoting his thread the question is still getting answered. Well maybe, we still have yet to see.

Nvm, the eruption at red mountain is good enough for me and makes sense. Thanks to that person for that answer.

you misunderstand what i mean, i didnt mean the dwemer reimagined the land, i meant bethesda did. the same way that the dragoncult was never mentioned in bloodmoon, it didnt exist. new lore.
and im sorry if it seemed i was being mean to you, i just saw the whole thing as being silly to bring up if you wanted credit. lol

Lore suggests there was a big war between Dwemer & Dunmer in Morrowind, so it doesn't seen totally arbitary. It was probably an oversight in Morrowind to not have included them.