Like many of New York's greatest green spaces, the juxtaposition of Prospect Park's natural and manmade beauty is captivating. On this walk, we'll take you on a scenic path that winds through some Prospect Park's most picturesque landscapes, as well as its landmarked bridges, historic arches, and boulder spans.

Boulder Bridge, date unknown. Built in the late 1800s to replace a previous wooden bridge, Boulder Bridge uses as its only material local glacial boulders left behind after the Wisconsin Ice Sheet retreated. The bridge straddles the park's bridle path.

While New York City is certainly best known for its towering skyscrapers and classy historic districts, its earliest monuments of stone are just that: stone. The geologic landscape of the city was formed between 20,000 and 18,000 years ago with the movement of the Wisconsin Ice Sheet down from Canada. The rock and debris deposited from the ice sheet, as well as the valleys it deepened, bedrock it smoothed and glacial grooves it left, formed the landscape of the city that began to grow in the colonial era. In some cases the rocks have been moved or crumbled in the name of urban development. But some of this geologic history can still be seen within the urban environment. This collection highlights some of the more well-known geologic features.