Consider the question. In the summer of 1963, 17-year-old Frances "Baby" Houseman is vacationing with her family at Kellerman's, a resort in the Catskill Mountains. Baby, the younger of two daughters, plans to study economics in underdeveloped countries and enter the Peace Corps. Her father, Jake, is the doctor and friend of Max Kellerman, the resort proprietor. Baby develops a crush on the resort's dance instructor, Johnny Castle, and meets his cousin, Billy. The staff holds secret after-hours parties in their quarters, and Baby is surprised by their "dirty dancing". Intrigued, Baby receives a brief, impromptu dance lesson from Johnny.

Answer this question based on the passage: where is dirty dancing supposed to take place?
What is the step-by-step reasoning process to arrive at the answer: Kellerman 's , a resort in the Catskill Mountains?
The important part for answering this question is: In the summer of 1963, 17-year-old Frances "Baby" Houseman is vacationing with her family at Kellerman's, a resort in the Catskill Mountains.