While this isn’t a typical post focusing on Denver’s urbanism, I’m sure we can all appreciate some train history rolling through Denver this past weekend. Union Pacific’s 1.2 million pound “Big Boy” No. 4014 made a stop just north of the 38th and Blake commuter rail station for all the train enthusiasts around Denver to check out. Starting in 1941, twenty-five Big Boys were built for Union Pacific. These trains, powered by steam, were the largest steam locomotives in the world, holding 25,000 gallons of water and 6,100 gallons [...]