After Mrs. Garrett says she can't leave for Africa because she likes Peekskill in the fall, Jo says, "Africa's got nothing on the Peekskill/Cortland area." But Peekskill and Cortland are not in the same area of New York. They are three hours/190 miles away from each other.
Although Peekskill, NY and Cortland COUNTY are about two hundred miles apart, the reference in this episode is for the Town of Cortlandt (Manor) NY which surrounds the City of Peekskill and many times the Peekskill/Cortlandt Area Chamber of Commerce do sponsor events together.