DULUTH -- The world’s only running “Big Boy” steam engine will arrive in Duluth in late July, according to a news release from the Lake Superior Railroad Museum.

The locomotive will arrive at the Duluth Depot on July 19 as part of its tour in celebration of the Union Pacific railroad system's 150th anniversary, according to Union Pacific's website. The depot’s Lake Superior Railroad Museum is holding a “Festival of Steam” from July 19-21 alongside its arrival.

The "Big Boy" steam engine will be on display only, but visitors can ride in historic engine No. 332 for a 75-minute trip with the purchase of a ticket.

The steam engine is around 133 feet long and weighs over 1 million pounds.