Claremont Arch
Built around 1890
Stone arch vehicle bridge (Manhattan schist)
Carries a pedestrian path under the 90th Street entrance to the park
One of the more obscure arches in the park, partially hidden by vegetation and blocked on both ends by heavy iron gates. Probably for the best, since it's clandestine location would make it an excellent haven for the homeless and for illicit activities. Named after the former Claremont Riding Academy, which was located on 86th street.