Palermo No. 2 mine, Groton, Grafton Co., New Hampshire, USA

Located near the village of North Groton - on the Palermo mine property.

References:
Nizamoff, J.W.; Whitmore, R.W.; Falster, A.U.; Simmons, W.B.; Webber, K.L.(1999): Secondary Phosphate Minerals from the Palermo No. 2 Mine, North Groton, New Hampshire. Rocks & Minerals, May 1999

Nizamoff, J.W.; Whitmore, R.W.; Falster, A.U.; Simmons, W.B. (2003): Montebrasite and associated secondary phosphates from the Palermo No. 2 Mine, North Groton, New Hampshire. Rocks & Minerals March-April, 2003

Whitmore, R.W. and Lawrence, R.C., Jr. (2004): The Pegmatite Mines Known As Palermo.