Page 3 – Hooper Mine


In 1898, Frank Hooper opened a garnet mine near North River, not far from Barton's Gore Mt. mine, which opened in 1878. The rock at Hooper's mine contained much smaller crystals than those at Gore Mt. The Hooper mine was soon abandoned, and Hooper went to work for Barton. This is a view of the surrounding terrain from the one of the outer edges of the Hooper Mine.

This nice glacial scour slopes down to the right, whereas the mine highwall begins at the left of the image.


The foreground is the flat floor of the mine, which has become overgrown with vegetation. There is some rock worth collecting on the floor, but abundant fresh rock can be found in the talus near the surrounding highwalls. The mine is somewhat circular in outline, with an opening at one side through which entry is made from the trail that now occupies the former access road.


Close-up of the highwall on one side of the mine.


Talus at the bottom of the highwall. Much of the rock is quite fresh, and yields interesting specimens. The gem potential of this garnet seems low, although there are reports of large, flawless porphyroblasts being obtained here that can be cut into gems.


Close-up of the garnet-bearing rock from the Hooper Mine.  Not surprisingly, it resembles the rock from the nearby Barton Ruby Mountain mine more than Gore Mt. rock.  It consists Primarily of plagioclase feldspar with garnet, and relatively minor amounts of hornblende. The large garnet is about the size of a quarter.