The Harding Pegmatite Mine in Taos County, New Mexico is owned by the State and managed by the University of New Mexico. You can visit and collect up to five pounds of material but there is a procedure you must follow and an unmarked entrance road you must find.
I describe those details in my Places to Visit and Collect in the Southwest file (external link) at my rockhounding site.
Taos County is D.H. Lawrence country and still home to countless artists, writers, and their studios.
These photographs are from last October.
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