Where Events Have Impact & Memories Last Forever Deer Mountain’s stunning 25-acre private site is nestled at the base of the Ramapo Mountains - Harriman State Park, encompassing all the beauty of New York’s Hudson Valley. To us, every event is one-of-a-kind. We take the time to understand your vision and create an unforgettable event that goes beyond your expectations. We are Conveniently Located - near NYC, Westchester, and Bergen County. Our venue is perfect for your next Corporate Event, Wedding, Bar/Bat Mitzvah, Family Reunion, Birthday/Graduation Party, School Picnic, or Movie Shoot. We have everything you need in our stunning mountainside location to bring your vision to life: Expert planning, delicious food – in house catering, AV equipment, indoor & outdoor facilities for all types of weather, pools, premium activities, as well as relationships with a variety of vendors, i.e. inflatables, rides, DJ’s, etc. Abundant Activities: Swimming, Pickleball – 16 Courts!, Tennis, Basketball, Flag Football, Beach Volleyball, Archery, Adventure Activities, Boating & Fishing, Softball, Soccer, Sports Tournaments or Clinics, Gaga, Special Events–Olympics, Field Days, Themes, Etc., Soccer, and More.