One of these areas was Ulster Heights , in the western highlands of the Town of Wawarsing , near the Sullivan County line .
The area of Ulster and Sullivan counties due west of Ellenville and Kerhonkson became a popular destination .
One of these areas was Ulster   , in the western highlands of the Town of Wawarsing , near the Sullivan   line .
The area of Ulster and Sullivan counties due west of Ellenville and Kerhonkson became a popular destination .