The History of the Several Towns, Manors, and Patents of the County of Westchester (1881 revised edition, Vol. I)
All that other part of land situate, lying and being further up in the said Wilderness, in the aforesaid county of Westchester, and Province of New York, aforesaid, bounded to the south by the Division line between the said Province of New York and the said Colony of Connecticut, and so along the said line until it meets with the patent of Adolph Philipse, and so along his Southern bounds until it meets with the mauor of Courtland, and from thence by aline that shall urn upon a direct course until it meets with the first Easterly line of Twenty miles of the said Manor of Courtland, and from thence along the said line Westerly until it meets with a patent granted unto Robert Walter and others, thence Southerly along the said patent until it meets with the bounds of the Township of Bedford, and thence round along the said aforesaid bounds until it meets with the Patent granted to Colonel Caleb Heathcoatc and others, and along the bounds of the said Patent unto the Colony line where it first begun ; and, also, all that small tract of land beginning Westerly at a great rock on the Westmost side at the Southwest end of a ridge known by the name of Rithbell, or Horse-ridge, and from thence Northwest and by North to Brunk's river, Easterly beginning at a m rked tree at the Eastmost side on the Southwest end of the said Ridge, and thence North to
THE TOWN OF NORTH CASTLE.