Plan an RV trip to Thermopolis, Wyoming, with hot springs, ranch camping, scenic stops, practical logistics, and a flexible two-day itinerary.
Thermopolis is the kind of Wyoming stop that can carry an entire RV weekend. The mineral terraces and hot-spring pools are the obvious draw, but the combination of geology, ranch character, the Bighorn River, dinosaur history, and the drive through Wind River Canyon gives the town much more depth than a quick soak-and-go stop.
Our Green Machine experience centered on Crippled Spider Ranch, where Wyatt’s Old West personality and the wide-open Hot Springs County landscape made the place feel personal. This guide pairs that first-hand stay with current visitor information from the campground, Hot Springs County tourism, and the Wyoming Office of Tourism so you can turn the same area into a practical RV itinerary.
Why Thermopolis is worth the RV detour
Thermopolis works because the headline attraction does not require an exhausting schedule. You can spend part of the day soaking and walking in Hot Springs State Park, then choose between fossil exhibits, a canyon drive, time near the river, or a quiet evening at camp.
The Wyoming Office of Tourism describes the town as a destination for history, geology, and family fun. It places Thermopolis at 4,326 feet and highlights the state bath house, the Bighorn River, the state bison herd, the Wyoming Dinosaur Center, Legend Rock, and the southern approach through Wind River Canyon.
That variety makes the stop useful for couples with different energy levels. One person can build the day around trails and a scenic drive while another protects time for a soak, a museum, or a slow afternoon back at the rig.
Where we stayed: Crippled Spider Ranch
Crippled Spider was more than a place to park the Green Machine. Wyatt, the ranch routines, the animals, and the surrounding landscape gave the stay a personality we would never have found at a generic overnight stop.
The campground currently advertises pull-through RV sites with 20-, 30-, and 50-amp full hookups, a dump station, large-rig accommodation, showers, laundry, Wi-Fi, tent sites, a pet area, resident animals, and rustic sheep-wagon stays. Because the property continues to grow, confirm the exact site, hookups, pet rules, and amenities for your dates directly through the official Crippled Spider website.
Our longer Crippled Spider Ranch story focuses on Wyatt, the Old West character of the stay, and the questions we recommend asking before driving an RV onto any working ranch or rural property.
Hot Springs State Park: what RV travelers should know
Hot Springs State Park is the center of a first Thermopolis visit, but it is not a campground. Hot Springs County tourism specifically notes that overnight camping and overnight RV parking are not allowed inside the park, so choose a separate campground before building the rest of the itinerary.
The public State Bath House is open year-round and maintains its soaking water at 104°F. Access remains free, and the surrounding day-use park includes mineral terraces, walking trails, fishing access, a boat ramp, the Bighorn River, and the Swinging Bridge.
The thermal water that forms the colorful terraces flows at a much hotter temperature than the soaking pool, so stay on marked routes and treat the landscape as an active thermal area. The park also maintains a bison herd; give wildlife generous space and follow posted instructions.
Check current hours and conditions through the Hot Springs State Park visitor page before departure.
Five experiences to build around the hot springs
1. Walk the mineral terraces and Swinging Bridge
Begin outside before soaking. The terraces show how mineral water reshapes the landscape, and the pedestrian bridge gives you another perspective over the Bighorn River. Starting with a walk also helps you understand the park layout before choosing where to spend the rest of the morning.
2. Soak at the State Bath House
The free bath house is the simplest version of the Thermopolis hot-spring experience. Pack an easy-to-reach swimsuit, towel, water, and sandals so you do not have to unpack half the rig after arrival. Commercial pool options are also available in the park area if slides or a larger pool experience better fits your group.
3. Visit the Wyoming Dinosaur Center
The Wyoming Dinosaur Center adds a completely different kind of geology to the trip. The state tourism office highlights its fossil collections and seasonal opportunities to join paleontologists at dig sites. Check current programs, reservations, and age requirements through the current visitor listing before planning the day around a tour.
4. Drive through Wind River Canyon
The canyon south of Thermopolis is not merely the road into town; it is part of the destination. Give the driver room to focus, use designated pullouts instead of improvising a stop, and check Wyoming road conditions before moving a large rig through the corridor.
5. Choose one slower local experience
Fishing or rafting on the Bighorn River, downtown shops, the Hot Springs County Museum, Legend Rock, or simply spending more time at the ranch can keep the itinerary from feeling like a race. The Thermopolis visitor FAQ says the typical rafting season runs between Memorial Day and Labor Day, while the hot springs operate year-round.
A practical two-day Thermopolis RV itinerary
Arrival evening
- Arrive with daylight and complete the campsite setup before heading back into town.
- Confirm the next day’s bath-house hours, weather, and any museum reservations.
- Take a short walk, meet the host, and let the pace of the ranch replace the pace of the highway.
Day one: mineral water and town
- Walk the mineral terraces and Swinging Bridge in the cooler part of the morning.
- Use the State Bath House or another pool that matches the experience you want.
- Have lunch in town, then visit the Wyoming Dinosaur Center or Hot Springs County Museum.
- Return to camp early enough for a relaxed evening instead of squeezing in another long drive.
Day two: canyon, river, or ranch
- Choose Wind River Canyon, fishing, rafting, Legend Rock, or a longer ranch experience.
- Keep one block unscheduled for weather, wildlife, a local recommendation, or a second soak.
- Refuel and restock before a remote next leg.
When to visit Thermopolis
There is no single correct season because the hot springs are a year-round attraction. The best time depends on whether the rest of your plan emphasizes river time, fossil programs, uncrowded soaking, or a broader Wyoming route.
- Spring: useful for a quieter trip, but build flexibility around changing road conditions, wind, and muddy rural approaches.
- Summer: the easiest season for pairing the springs with rafting, fishing, outdoor museum programs, and long daylight hours. Reserve the campsite and ticketed experiences early.
- Fall: a good match for travelers who prefer cooler activity windows and a slower itinerary. Confirm seasonal attraction schedules before committing the route.
- Winter: the hot springs remain available, but the RV plan requires a serious cold-weather systems check and close attention to road conditions.
Whatever the month, check conditions close to departure rather than treating a long-range forecast as a promise.
What to pack for a hot-springs RV stop
Keep a small soak bag accessible so you can enjoy the park without opening every exterior compartment. We would pack:
- Swimsuit, towel, sandals, and a separate bag for wet gear
- Refillable water bottle and simple post-soak snack
- Sun protection and layers for wind or fast temperature changes
- Walking shoes for the terraces, bridge, and park paths
- Offline directions, campsite instructions, and attraction confirmations
- Pet temperature and supervision plan for any time humans are soaking
The point is not to pack more. It is to keep the items for the day’s first experience together, then leave the rest of the rig organized.
RV access and setup notes
Thermopolis is approachable by highway, but central Wyoming conditions can change quickly. Wind, temperature swings, smoke, construction, and winter weather deserve a final check close to departure.
- Know the rig’s height, total length, weight, and comfortable fuel range.
- Use the official WYDOT road and travel information before moving the rig through a canyon or winter route.
- Confirm the campground approach, site assignment, hookup amperage, and late-arrival process.
- Do not assume Hot Springs State Park provides overnight parking.
- Carry water for walking and soaking; the dry air can hide how quickly you are losing fluids.
- Plan outside activities around wind, sun exposure, and the needs of pets.
Our 15-point RV trip-planning checklist covers the route, rig, campground, utilities, supplies, weather, safety, and arrival sequence in more detail.
How to budget the stop without relying on stale prices
Campground and attraction prices can change, so we would rather give you a reliable budget structure than publish a number that may be wrong by the time you arrive.
- Campground: confirm the nightly rate, taxes, hookup type, pet fee, cancellation policy, and whether booking-platform fees apply.
- Hot springs: the State Bath House is free; set aside a separate amount if you want a commercial pool experience.
- Attractions: check current museum, dig-site, rafting, fishing, and guided-experience prices.
- Rig costs: include fuel, propane, dump or water fees, and the extra consumption created by canyon or mountain driving.
- Food and supplies: decide which meals stay at camp and which local restaurants are part of the experience.
Write the confirmed figures in the trip budget section of the free Ready-to-Roll RV Trip Planner, along with the reservation and cancellation details.
Who will enjoy Thermopolis most?
Thermopolis is a strong fit for RV travelers who like a mix of comfort, geology, Western character, and low-pressure outdoor time. It is especially good for couples who want meaningful experiences without committing every day to a difficult hike.
It may be less appealing if your only goal is nightlife, luxury shopping, or a highly polished resort atmosphere. The charm is the opposite: mineral water, open landscape, local personality, and enough room in the itinerary to notice them.
Thermopolis RV trip FAQs
How many nights do you need in Thermopolis?
Two nights create a comfortable first visit: one arrival evening, one full hot-springs and museum day, and one flexible morning or second day. Add a third night for rafting, fishing, a fossil program, Legend Rock, or more time at the ranch.
Can you camp inside Hot Springs State Park?
No. The park is day-use and does not allow overnight camping or overnight RV parking. Choose a separate campground, then treat the park as a daytime destination.
Is the Thermopolis State Bath House really free?
Yes. Local tourism says the public State Bath House remains free and open year-round, with soaking water maintained at 104°F. Commercial pools nearby are separate businesses with their own admission, schedules, and experiences.
Can Crippled Spider accommodate a large RV?
The campground currently advertises pull-through sites, full hookups, and large-rig accommodation. Rig fit is specific, so give the campground your total length, height, slide needs, tow vehicle, arrival time, and preferred amperage before booking.
Our Green Machine verdict
Thermopolis is worth more than a fuel stop. Hot Springs State Park provides the natural headline, while Crippled Spider Ranch, the river, the canyon, and the area’s prehistoric history give the trip its personality.
Give it two nights, confirm the practical RV details, and leave enough open time for the host, the landscape, or the next unusual detour to change the plan. That is where Thermopolis becomes a Green Machine adventure instead of another dot on the route.
Planning note: Destination details were reviewed in August 2026. Campground amenities, road conditions, attraction hours, programs, and prices can change; verify them with the official providers before traveling.
Watch the story
See a different side of the Thermopolis area.
Our Crippled Spider Ranch video adds people, place, and motion to the practical stops and logistics in this destination guide.
Read the full ranch story
First-hand field notes
Written by Amy & Ryan
We share RV travel, comfortable glamping, unusual road finds, wellness routines, and honest lessons from our own Green Machine adventures.
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