Copper used in buildings, usually for roofing, oxidizes to form a green verdigris (or patina). Pigments such as lead-tin yellow, ultramarine, verdigris and ochres have been identified. The structure is topped with a steeply pitched verdigris copper roof. They also used the pigment verdigris, made by soaking copper plates in fermenting wine. Eventually Cambridge City Council painted over the decoration with a dull faux verdigris. As years gone by, oxidation with air has turned the dome from spangle to verdigris. Claremore lies near the Verdigris River with undulating terrain producing hills and valleys. Spray, brush, splatter, verdigris, roller palette knife. Muskogee is near the confluence of the Arkansas River, Verdigris River and Grand River. All other creeks drain into the Verdigris River. Nuttall's travels took him to the mouth of the Verdigris River. Flooding occurred in the Kansas, Neosho, Marais Des Cygnes, and Verdigris river basins. This flood also affected the Kansas, Neosho, and Verdigris river basins. A few weeks later the pot was dug up and the verdigris scraped off. Pasona was near an ancient earthwork platform mound near the Verdigris River.