Speaking of Aztec, most of their value is in Mexico anyway, and their projects there looks really good (this is not an ad from me - just news from this morning).
Aztec Minerals Becomes 100% Owner of Cervantes Property in Sonora, Mexico, Acquires 35% interest from Kootenay Silver
https://finance.yahoo.com/news/aztec-minerals-becomes-100-owner-113000207.html