What's Ponkiesburg???

From Brooklyn: A Walk Through History, Cummings, Fool's Gold Press, 1972:

The Ponkiesawa Indian tribe lived for centuries in the area now known as Cobble Hill, just south of Brooklyn Heights. They were a peaceful people, raising corn, millet, and sorghum and carrying on a thriving trade with other local Indian tribes, such as the Canarsies and the Gowanies. The industrious Ponkiesawas constructed a road which ran from what is now downtown Brooklyn, near the Fulton Mall, south to what is now Red Hook.