RV Dump Stations In Wyoming -- Find Sani-Dumps Online
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Quick Overview
Wyoming is big-sky RV country at its finest -- the least populated state in the nation with two of America's most iconic national parks and vast stretches of open range between them. Sanidumps lists several sanitary dump stations across the Cowboy State, with some free locations -- a portion% offering free disposal and a portion% charging a fee for sani-dump access.
I-80 crosses the southern third of Wyoming from Cheyenne to Evanston, running 402 miles through high plains and basin country. Dump station access along this corridor is reasonable, with facilities at most larger exits including Rawlins, Rock Springs, and Green River. I-25 heads north from Cheyenne through Casper to Buffalo, providing the main route toward the Bighorn Mountains and Yellowstone from the south. I-90 clips the northeast corner through Sheridan and Gillette.
Yellowstone National Park dominates Wyoming's RV traffic. The park's five entrance communities -- West Yellowstone (Montana), Gardiner (Montana), Cooke City (Montana), Cody, and Jackson -- all have dump station options. Inside the park, campgrounds at Bridge Bay, Canyon, Fishing Bridge, Grant Village, and Madison have dump stations during operating season (generally late May through early October). Yellowstone's internal roads are well-maintained but winding, and construction delays are common during summer.
Grand Teton National Park south of Yellowstone offers equally stunning scenery with less traffic congestion. Colter Bay and Gros Ventre campgrounds have dump access and accommodate larger rigs. The town of Jackson has RV services but is expensive and congested -- most RVers prefer the campgrounds along the highway north of town toward Moran Junction.
The Bighorn Mountains in north-central Wyoming offer a less crowded alternative with solid sanidump infrastructure in the gateway communities of Sheridan, Buffalo, and Ten Sleep. US-14, US-14A, and US-16 cross the Bighorns with steep grades and dramatic switchbacks -- check your rig's length and towing capacity before committing to these mountain roads.
Devils Tower National Monument in the northeast corner, the Wind River Range along the Continental Divide, and the Flaming Gorge area in the southwest all draw RV visitors with varying levels of dump station access. Between the major attractions, Wyoming's empty spaces mean long stretches without services -- it's not unusual to drive 80-100 miles between fuel stops on highways like US-26, US-287, or US-191 outside the park corridors.
Wind is Wyoming's defining weather feature for RVers. The state is among the windiest in the country, and crosswinds along I-80 and across the open basins can exceed 60 mph. High-profile rigs regularly get blown off the road. Check wind advisories before every travel day.
Top Rated RV Dump Stations in Wyoming
Browse RV Dump Stations by City (56)
Afton
Alcova
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Devils Tower
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Yellowstone National Park
Getting Around Wyoming by RV
I-80 across southern Wyoming is flat and fast but exposed to extreme wind. The stretch from Rawlins to Rock Springs is notorious for high-wind closures. I-25 from Cheyenne north through Casper has moderate terrain and less wind exposure. I-90 in the northeast corner is a modern, easy drive.
US-191 from Jackson north through Grand Teton and into Yellowstone is the most popular park approach and handles all RV sizes. US-14/16/20 from Cody through the Wapiti Valley into Yellowstone's East Entrance is a spectacular canyon drive with some tight spots for longer rigs. US-89 through the Hoback Canyon south of Jackson has steep grades and limited pullouts.
Fuel prices in Wyoming stay close to the national average, but remote areas charge more. Fill up whenever you see a station on secondary highways. Propane is available in most towns and at many campgrounds. Altitude affects engine performance -- much of Wyoming sits above 6,000 feet, and passes in the Bighorns and Tetons exceed 9,000 feet. Turbocharged diesel engines handle it best; naturally aspirated gas engines lose noticeable power.
RV Dump Stations Costs in Wyoming
Wyoming's dump stations are predominantly paid, with a portion% charging a fee and a portion% offering free disposal. National park dump stations are included with campground fees (park entrance is $35 per vehicle for 7 days at Yellowstone, $35 at Grand Teton). Private campgrounds near the parks charge $10-20 for dump-only visits.
Yellowstone-area camping and services carry premium prices. Private campgrounds near park entrances run $50-85 per night for full hookups in summer. National park campgrounds are more affordable at $25-35 per night but lack hookups (except Fishing Bridge). Away from the parks, Wyoming camping costs drop significantly -- state parks and BLM campgrounds run $12-25 per night. Wyoming has no state income tax and low sales tax, which helps offset the higher tourist-area pricing.
Contact station for pricing details.
Prices may vary. Always confirm with the station before visiting.
What RVers Are Saying About Wyoming
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Best Time to Visit Wyoming by RV
Winter
Dec - Feb
-10 to 30°F
Crowds: Low
Severe cold statewide. Most park roads and campgrounds close. I-80 closes frequently for wind and snow. Only hardened rigs should travel.
Spring
Mar - May
20-58°F
Crowds: Low
Yellowstone roads open gradually through May. Late snow is common. Wildlife is active with newborns. Limited campground availability until June.
Summer
Jun - Aug
45-85°F
Crowds: High
Peak season at Yellowstone and Grand Teton. Reserve months ahead. Afternoon thunderstorms daily in the mountains. Lower elevations get hot.
Fall
Sep - Nov
15-60°F
Crowds: Medium
September is ideal -- elk rut, golden aspens, thinner crowds. Park facilities start closing mid-October. Hard freeze by early November.
Explore Wyoming
Yellowstone reservations through Recreation.gov are essential for summer visits -- campgrounds book up months in advance. Fishing Bridge RV Park is the only park campground with full hookups. If the park campgrounds are full, West Yellowstone, Cody, and the Dubois area all have private parks with dump access within reasonable driving distance of park entrances.
Cell coverage in Wyoming is extremely limited outside the towns. Yellowstone and Grand Teton have no reliable service in most areas. Verizon has the best rural coverage, but even that drops out frequently on secondary highways. Download offline maps and park information before entering the backcountry.
Wildlife on the roads is a real hazard -- pronghorn, deer, elk, and moose all cross highways without warning, especially at dawn and dusk. Moose collisions can be fatal, so drive cautiously through known habitat in the Tetons and Bighorns. Summer afternoon thunderstorms are common in the mountains, and snow can fall in Yellowstone during any month of the year. Carry warm layers even in July if you're camping above 7,000 feet.
Helpful Resources
Federal Resources
- Recreation.gov— Federal campgrounds & recreation areas
- National Park Service— National parks & monuments
- Bureau of Land Management— BLM public lands & dispersed camping
- US Forest Service— National forests & grasslands
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Read more →Frequently Asked Questions About RV Dump Stations in Wyoming
How many RV dump stations are in Wyoming?
Sanidumps lists {{stationCount}} dump stations across Wyoming. The highest concentration is near Yellowstone and Grand Teton national parks, with facilities in gateway towns and inside the parks. I-80 across southern Wyoming and I-25 through the center have reasonable coverage. Remote areas between major routes can have gaps of 80-100 miles.
Where can I find free dump stations in Wyoming?
Currently {{freeCount}} stations in Wyoming are listed as free. Most facilities charge a fee. National park campgrounds include dump access with camping fees. Some smaller towns and municipal facilities offer low-cost dump access. Plan your dump stops in advance, especially when traveling the remote secondary highways.
Can I take a large RV into Yellowstone National Park?
Yes, Yellowstone's main roads accommodate RVs of all sizes. The Grand Loop Road handles big rigs, though some parking areas are tight for rigs over 40 feet. Several campgrounds accept large RVs -- Bridge Bay and Fishing Bridge are best for the biggest rigs. Side roads to some trailheads may have length restrictions. Construction delays are common in summer, so carry patience and extra fuel.
What's the best time to RV in Wyoming?
September is the sweet spot -- warm days, cool nights, fall color, elk rut in the Tetons, and significantly fewer visitors than July and August. June through August is peak season with full campgrounds and the best weather. Late May and early October bookend the season with good conditions but increasing cold. Winter RV travel is extremely limited outside the southern I-80 corridor.
How bad is the wind in Wyoming for RVing?
Wyoming wind is a serious safety concern. I-80 across the southern tier regularly sees sustained winds over 40 mph with gusts exceeding 60. High-profile RVs get blown off the road every year. Check WYDOT wind advisories before every travel day, and don't push through closures. The basins and open plains are worst -- mountain valleys and the park corridors are generally more sheltered.
Are there dump stations at Grand Teton National Park?
Yes, Colter Bay and Gros Ventre campgrounds in Grand Teton have dump stations. Colter Bay also has an RV park with hookups. The park entrance fee is $35 per vehicle for 7 days. Jackson and the communities along US-89 and US-191 north of town have additional dump facilities. The park is less congested than Yellowstone and easier to navigate in large rigs.
Do I need reservations for Yellowstone campgrounds?
Most Yellowstone campgrounds now require reservations through Recreation.gov, and popular sites book up months in advance. A few campgrounds operate on a first-come, first-served basis. Summer weekends are the hardest to secure. Check the park website for current reservation policies, as the system has been evolving. West Yellowstone and Cody have overflow options when park campgrounds fill.
How many RV dump stations are in Wyoming?
Sanidumps lists {{stationCount}} dump stations across Wyoming. The highest concentration is near Yellowstone and Grand Teton national parks, with facilities in gateway towns and inside the parks. I-80 across southern Wyoming and I-25 through the center have reasonable coverage. Remote areas between major routes can have gaps of 80-100 miles.
Where can I find free dump stations in Wyoming?
Currently {{freeCount}} stations in Wyoming are listed as free. Most facilities charge a fee. National park campgrounds include dump access with camping fees. Some smaller towns and municipal facilities offer low-cost dump access. Plan your dump stops in advance, especially when traveling the remote secondary highways.
Can I take a large RV into Yellowstone National Park?
Yes, Yellowstone's main roads accommodate RVs of all sizes. The Grand Loop Road handles big rigs, though some parking areas are tight for rigs over 40 feet. Several campgrounds accept large RVs -- Bridge Bay and Fishing Bridge are best for the biggest rigs. Side roads to some trailheads may have length restrictions. Construction delays are common in summer, so carry patience and extra fuel.
What's the best time to RV in Wyoming?
September is the sweet spot -- warm days, cool nights, fall color, elk rut in the Tetons, and significantly fewer visitors than July and August. June through August is peak season with full campgrounds and the best weather. Late May and early October bookend the season with good conditions but increasing cold. Winter RV travel is extremely limited outside the southern I-80 corridor.
How bad is the wind in Wyoming for RVing?
Wyoming wind is a serious safety concern. I-80 across the southern tier regularly sees sustained winds over 40 mph with gusts exceeding 60. High-profile RVs get blown off the road every year. Check WYDOT wind advisories before every travel day, and don't push through closures. The basins and open plains are worst -- mountain valleys and the park corridors are generally more sheltered.
Are there dump stations at Grand Teton National Park?
Yes, Colter Bay and Gros Ventre campgrounds in Grand Teton have dump stations. Colter Bay also has an RV park with hookups. The park entrance fee is $35 per vehicle for 7 days. Jackson and the communities along US-89 and US-191 north of town have additional dump facilities. The park is less congested than Yellowstone and easier to navigate in large rigs.
Do I need reservations for Yellowstone campgrounds?
Most Yellowstone campgrounds now require reservations through Recreation.gov, and popular sites book up months in advance. A few campgrounds operate on a first-come, first-served basis. Summer weekends are the hardest to secure. Check the park website for current reservation policies, as the system has been evolving. West Yellowstone and Cody have overflow options when park campgrounds fill.
What is the highest-rated dump station in Wyoming?
The highest-rated is Rocky Mountain Wash with a rating of 3.8/5 stars.
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