There are also lots of hills in Westchester and Connecticut though I haven't really ridden there much. I really like rt 106 and Tiorati Brook Rd in Harriman park. I haven't ridden Arden Valley Rd yet which was also part of the aforementioned rt. As for Skyline Drive in NJ, it has been milled and is no longer safe for cycling. For some even bigger climbs head up to the gunks or the catskills. Take a look at the rides library of the NYCC ( http://www.nycc.org/rl_db/home.aspx ) You also didn't say how you were getting out of town. car or public transit?