𝙁𝙧𝙤𝙢 𝙩𝙝𝙚 𝙜𝙧𝙤𝙪𝙣𝙙 𝙪𝙥 Paving of the 1.5-mile speedway began in April 1996. A pre-paving layer of limestone was first laid down followed by a layer of oil (which resembles pavement) and then 42,000 tons of asphalt. #nascar75 #nascar #racing #lasvegasmotorspeedway #lvms #vegas #lasvegas #tbt #throwback