On display are many fossils and an 11,600-year-old mammoth tusk unearthed during the dam s construction.
(On display; are; many fossils and an 11,600-year-old mammoth tusk) (an 11,600-year-old mammoth tusk; unearthed; T:during the dam s construction)
On display an 11,600-year-old mammoth tusk
are unearthed
many fossils and an 11,600-year-old mammoth tusk
T:during the dam s construction