 Iron Horse RV & Trailers, new location, Louisville Highway, just north of Highway 20. Give Bridger a call today, 208-604-6618. 208-604-6618. KID News Radio Studio, powered by Iron Horse RV & Trailers in Rexburg. Off exit 322, Highway 20, Rexburg. When a journey matters. Iron Horse RV, online 24-7 at ironhorservyandtrailers.com.