(Trent Nelson | The Salt Lake Tribune) The Rail Trail in Park City on Wednesday, Sept. 1, 2021.(Trent Nelson | The Salt Lake Tribune) The Rail Trail in Park City on Wednesday, Sept. 1, 2021.(Trent Nelson | The Salt Lake Tribune) Murals in tunnels along the Rail Trail in Park City on Wednesday, Sept. 1, 2021.(Trent Nelson | The Salt Lake Tribune) Murals in tunnels along the Rail Trail in Park City on Wednesday, Sept. 1, 2021.(Trent Nelson | The Salt Lake Tribune) Murals in tunnels along the Rail Trail in Park City on Wednesday, Sept. 1, 2021.(Trent Nelson | The Salt Lake Tribune) Murals in tunnels along the Rail Trail in Park City on Wednesday, Sept. 1, 2021.(Trent Nelson | The Salt Lake Tribune) Murals in tunnels along the Rail Trail in Park City on Wednesday, Sept. 1, 2021.(Trent Nelson | The Salt Lake Tribune) Murals in tunnels along the Rail Trail in Park City on Wednesday, Sept. 1, 2021.