Among the best vantage points : Fort Putnam and Trophy Point at the United States Military Academy at West Point , ( 845 ) 938-2638 ; Kaaterskill Falls , Route 23A , Haines Falls ; and the Frances Lehman Loeb Art Center at Vassar College , ( 845 ) 437-5632 , 124 Raymond Avenue , Poughkeepsie , which has about 25 paintings from the Hudson River School on display at any time .