This card was posted to France in 1935. A lovely sunset in the Catskill Mountains in New York State. Apparently it was a popular destination for New Yorkers in the mid twentieth century and is popular with painters writers and musicians even today. The mountains are no stranger to the film industry featuring in Woodstock, Tootsie, Dirty Dancing, Casper Meets Wendy,  to name a few.
Information taken from Wikipedia