List of Closed Maine Mineral Localities
The following localities are listed in the current or previous editions of the Collector's Guide to Maine Mineral Localities. As of 2016, they are reported to be CLOSED to the public. These closures result from a variety of reasons, including land transactions, new construction, liability concerns, and/or leasing of the properties for specimen recovery. Some closures are permanent. Others - particularly at leased quarries - may be temporary. In some cases, a location that is usually closed may be open by special arrangement for group visits. It is important that mineral collectors not enter the closed sites unless they have special permission from the owner or lease holder.
There may be other closures than those listed here, but these are the ones which have been reported to the Maine Geological Survey as of :