44 NEW YORK STATE MUSEUM 
3 The Red-back belt. About 1% miles south of the Augusta 
mine, and three-fourths of a mile directly west of the south end of 
Tuxedo lake is a band of ore more than a mile in length, marked 
along the outcrop by a reddish color which arises from the oxidation 
of the iron sulphides that are mixed in small proportion with the 
magnetite. 
One mine, called the Red-back, was opened in this belt. 
4 Bering and Morehead. Approximately three-fourths of a 
mile northwest of Sloatsburg, in Rockland county, and about one- 
fourth of a mile north of the highway, lies the Bering mune. Just 
over the county line, in Orange county, and three-fourths of a mile 
northwest of the Bering is the Morehead mine. But little is known 
of these two old mines; both seem to be isolated occurrences not 
directly connected with the more specific belts of ore already 
mentioned. 
5 The Greenwood group. This group of old mines occupies 
state land (park reservation), and is therefore closed to exploitation. 
The mines were not visited by the writer for that reason. The 
group consisted of the Hogencamp, Sure-bridge, Pine Swamp, 
Greenwood, Cunningham and Alice; they lie about 5 miles north 
of Arden, and were worked as open cuts. They have been closed 
many years, the Hogencamp being the only one in operation between 
1870 and 1880. 
6 The Forest of Dean group. The chief member of this group 
is the Forest of Dean mine, one of the oldest in the Highlands. It 
lies about 5 miles west of Fort Montgomery, just east of the state 
road, and approximately 16 miles northeast of Sterling lake. 
The Forest of Dean mine, and the Lake and the Scott, of the 
Sterling-Scott group, are the only mines now operative in south- 
eastern New York. The other members of the group are the Tower, 
Wetherby and “ Rattlesnake”; of these, the Tower is the only one 
of importance. It lies about 2 miles northeast of the Forest of 
Dean mine and 1 mile southeast of Long pond. The Wetherby is an 
old opening in the gneiss about 114 miles south, and slightly to the 
west, of Forest of Dean, at an elevation of about tooo feet on the 
western slope of the ridge which bounds Deep Hollow on its eastern 
side. The “ Rattlesnake” is an old hole in the gneiss about one- 
fourth of a mile southeast of Mine lake, near Forest of Dean. 
7 The Warwick group. One of the smaller subsidiary belts 
of the Orange county zone lies along the ridge of gneiss locally 
known as Warwick mountain, of which Rocky hill forms a part. 
