The 630 Series. #631 Made of acrylic stucco with a copper dish, this fountain has a built-in pump and acts as a birdbath and garden fountain. #632 This 10 foot tall stucco-covered resin sculpture complements the structure of the Boulder Valley Eye Clinic. #633 Continuous Form. This 11 foot tall concrete sculpture on an exposed aggregate concrete base was commissioned by the City of Boulder Parks and Recreation Department in 1988.