Eltich's Gardens was a local amusement park that opened as gardens in 1890. Slowly attractions were added, including a summer theater that hosted world class plays along with coasters, kiddie park and more. One of the first rides was this small scale live steam engind. It appears the kids are part of a birthday celebration. I do know this picture will be placed with the other Colorado amusement park items I have picked up since moving here to Denver.