Shorakapok Rock in Inwood Hill Park Here's an Upper Manhattan landmark definitely worth visiting on Indigenous Peoples' Day: Shorakapok Rock. This small boulder in Inwood Hill Park marks the spot, according to legend, where in 1626 Native Americans “sold"—or more likely agreed to share or lease for a certain time—the island of Manhattan to the Dutch for tools and beads worth 60 guilders. An NYC Parks sign near the spot. Not everything about the transaction is known—there is