Well, it used to have one big lake but the lakes in the region started receding a hundred years ago and have mostly dried up. There's been some debate on whether or not to rename them the Great Sand Basins. But! They still contain some water in areas, although its composition is more toxic waste and oil sludge than actual water.

[Rocky catches himself and the smile on his screen-face turns bashful.]

Oh. Was I rambling? Sorry about that! [He extends a robotic hand to her.] Anyway, my name is Rocky and I guess we're 'roommates' now.