Grave's Mountain will be open to the public for digging and rock collection April 27-29. Several of us discovered that we were going to this already, and decided the more, the merrier -- if you want to come out and dig around with some fish (and rock) enthusiasts, come on over. I plan on showing up around 830 am on Saturday April 28th.

More info here:
https://www.gamineral.org/ft/commercial/ftgravesmain.html