CAMDEN — The brick edifice, empty for decades, sits decaying on Camden's first charted plot: Block 1, Lot 1, along a mostly derelict stretch of Delaware Avenue. Two plastic pontoons marked with black spray-painted squiggles rest atop cinderblocks outside the Benjamin Cooper House, built in 1734 by the grandson of the city's first settler. Weeds and reeds grow along the shoreline of the Delaware River next to the house; mounds of dirt and generations of maritime and industrial waste obstruct the view of the river. Deer tracks in the mud that long ago overtook cobblestone streets, trash, crumbling warehouses and graffiti show how this once-bustling area of North Camden has gone feral.