Goodness lol, I need to visit "the deeps"! I have never been there thinking I might get lost, (yes I can teleport) however, reading your reviews I can hardly wait to try going down that deep hole! Thanks everyone, will give it a try.
Actually, the single meal vendor is in the caverns, not the deeps. Deeps are best for sparkly rock, and there is plenty of beryl and dullite too...Caverns and Groddle Heights are good for all the rocks, but have metal (there is only one location in the Deeps that has metal). Housing neighborhoods in the Heights are good for metal...
I personally like to mine near the Level 4E Tool vendor, since he pays out the most for selling ore and gems... :)
I actually prefer Alakol/Groddle Heights --there is much more metal there, and fewer miners. Since I mostly make Molybdenum for selling and donating, I mostly mine in Alakol for the metal, and Ajaya Bliss for the sparkly.