Oasis
There is a sector in Tharsis called Oasis. Oasis is much farther along in the terraforming process than Parker, so the terrain is covered in a large of grass and there are small plants sprouting up everywhere. The sky is bluer, the clouds whiter, and everything is a little more Earth-like. Due to this, Oasis has a much greater residential population and more wealth. Buildings are larger and their architecture reflects many different cultural styles brought to Mars from Earth such as African and Middle Eastern influences.