CATSKILL DIVISION. 
307 
the same strata to be repeated in the section. Care, however, was taken to guard against 
this cause of possible error. 
The stratum of brecciated and conglomerate limestone in the section of the Catskill moun¬ 
tain, is found over a great area in the Catskill mountain region, although rarely more than 
one foot thick. This stratum often contains small quantities of carbonate and sulphuret of 
copper, (black) carbonate of iron, and sulphuret of zinc. It is so extensive, although thin, 
that it is a good reference stratum, to determine in what part of the series any particular 
stratum is situated that one may be examining. 
At Gilboa, the red shales and grits of the Catskill mountain rocks are seen in the creek 
valley, from the water level to two hundred feet above ; and thence they are found all along 
the valley to Hunter, and thence to the Mountain House. Fucoids abound in some of these 
strata. 
Fine sections are also exposed in all the valleys of the branches of the Schoharie kill above 
Gilboa, as, 
1. On the Manor kill, from Gilboa by Strikersville, in Broome, Schoharie county, to Dur¬ 
ham and Cairo in Greene county, on the Catskill creek. 
2. About Prattsville, and on the Batavia kill and all its branches, in Windham, Greene 
county. 
3. On the East kill and its branches, in Lexington and Hunter, in Greene county. 
4. On the Schoharie kill, in Lexington and Hunter, Greene county. 
5. On the West kill and its branches, in the same towns. 
6. On Catskill creek and Foxes creek, near Potter’s Hollow and Preston Hollow villages, 
in Rensselaerville township, in Albany county. 
7. On the roads crossing the mountain, from Cairo to Windham, and from Durham to Wind¬ 
ham, and from Durham to Cairo in Greene county. 
8. On the road from Catskill to the Mountain House at the Pine orchard, between Kiskata- 
mine creek and the top of the mountain. A section on this road has been given. 
9. On the road from Catskill to Hunter, through the Kaatersville clove. 
10. On the road from Woodstock in Ulster, to Hunter in Greene county. 
11. On the road from Saugerties, through the Plattekill clove, to Hunter in Greene county. 
12. On the Esopus creek and all its branches above the falls in the town of Olive, to their 
sources in Ulster county. 
13. On the branches of the Rondout kill in Shandaken township, and in the northwest part 
of Wawarsing, Ulster county. 
14. On all the gjtreams and roads of Sullivan county, except the town of Mamakating, and 
the east parts of those of Forestburgh and Fallsburgh. 
15. At the falls of the Shingle kill in Deerpark township, in the northwest part of Orange 
county. 
16. On all the roads and streams in Delaware county, except in parts of Harpersfield and 
Davenport. 
