From Kitchen Table Math, I found out that there is a textbook entitled "New York Geometry". It is, unsurprisingly, a textbook for high school geometry to be used in the state of New York. The state of New York has something called the Regents Examinations which are, roughly speaking, standardized final exams in certain subjects. (Not being too familiar with the system, I don't want to say more.)
But is geometry really so different in New York than in other states that it needs its own special book? If it is, I can't tell from the table of contents of the text; it sounds like standard high school geometry.