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Big Boy Steam Engine 4004 tourist attraction in Cheyenne, WY
Photo: Sam VanHeukelom
View of Big Boy Steam Engine 4004 in Cheyenne, WY
Photo: Kevin Short
View of Big Boy Steam Engine 4004 in Cheyenne, WY
Photo: Greg Catcott

Big Boy Steam Engine 4004

4.6(1,083 reviews)FreeWater Park
🕑 15-30 minutes👶 Best for ages 2-12. Toddlers and preschoolers are often mesmerized by the sheer size of the locomotive, while elementary-aged kids who love trains will appreciate learning about this piece of railroad history.

About

Note: There appears to be a data mismatch - Big Boy Steam Engine 4004 is actually a historic Union Pacific locomotive on display, not a water park. This impressive 1941 steam engine offers kids a chance to see a massive piece of railroad history up close. It's a quick, free outdoor attraction perfect for train-loving kids and makes a great photo opportunity while exploring Cheyenne.

Highlights

  • Massive 1941 Union Pacific steam locomotive on outdoor display
  • Free photo opportunities with an impressive piece of railroad history
  • Easy access for strollers and wheelchairs
  • Close-up views of the giant wheels and mechanical details

Pro Tips

  1. 1.This is a quick stop (15-30 minutes), so pair it with nearby Depot Museum for a fuller railroad experience
  2. 2.Bring a camera - kids love posing in front of the massive wheels and engine
  3. 3.Visit during cooler morning or evening hours in summer since there's limited shade around the display
  4. 4.The engine is outdoors and always accessible, making it perfect for a spontaneous stop any time of day

Best Time to Visit

Best visited spring through fall during mild weather, either early morning or late afternoon to avoid midday heat. Weekdays are less crowded than weekends, though as a static display, crowds are rarely an issue.

What to Know

This is a free, outdoor static display accessible 24/7 with street parking available nearby. There are no facilities, food options, or shade, so plan accordingly and combine with other Cheyenne attractions.

Seasonal Notes

Accessible year-round, though most comfortable to visit during spring, summer, and fall. Winter visits are possible but can be very cold and potentially icy around the display area.

Nearby Eats

The nearby Paramount Cafe offers classic American diner food in a family-friendly atmosphere, or head to Taco John's for quick, affordable kid-friendly Mexican food just a few blocks away.

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