Have you tried the Tonopah dump? It's OK to dig, sift, metal detect, etc. there. You'd need some sturdy boots and you'll need lots of drinking water. Each Memorial Day Weekend (hope you've figured out when that is by now. LOL) some folks go there and do the dump. The bottles are just about all dug out by now, but every once in awhile somebody finds an old token, coin, fob, etc. It's a large dump. Nothing fresh, it's an old dump that's dry and unfenced, but you have to avoid the rusty metal and the broken glass that is everywhere.
Golly, hope nobody else suggested Tonopah. I didn't take the time to read all the other posts. Shame on me.
