RV Dump Stations In Arco, Idaho
43.6366° N, 113.3003° W
Quick Overview
Arco serves up several RV dump stations for travelers crossing Idaho's high desert country. You'll find some free sanidumps scattered around town, which is pretty solid for a community of barely 1,000 souls.
This tiny crossroads sits where US-20, US-26, and US-93 converge, making it a natural pit stop between Yellowstone and Sun Valley. Most folks roll through on their way to Craters of the Moon National Monument, but Arco's got its own claim to fame -- it was the first city in the world powered by nuclear energy back in 1955.
The dump station landscape here leans heavily on RV parks and campgrounds. Mountain View RV Park is the newest addition to the mix. Don't expect big-box truck stops with sprawling facilities. What you get instead are straightforward sanitary dump stations that do the job without frills.
Access is dead simple since everything's right off the main highways. Most stations can handle rigs up to 40 feet without drama. The challenge isn't finding a place to dump -- it's remembering to fuel up and stock supplies before you get here. Services are limited, and you'll pay tourist prices for basics.
Plan your dump around other errands. Cell signal gets sketchy fast once you leave town, so download offline maps and handle any online business while you've got connectivity.
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Gear for Your Trip to Arco
All Dump Stations Near Arco
| Station Name | Distance | Rating | Category | Cost |
|---|---|---|---|---|
| KOA - Craters of the Moon / Arco KOA Journey | 0.7 mi | N/A | Dump Station | Free |
| Mountain View RV Park | 0.7 mi | 4.7 | Dump Station | Free |
| Cottonwood Links Golf Course & RV Park | 17.3 mi | N/A | Dump Station | Free |
| Butte County Dump Station | 17.9 mi | 4.0 | Dump Station | Free |
| White Knob Motel & RV Park | 22.6 mi | 4.7 | Dump Station | Varies |
| Rest Area - Mackay | 24.7 mi | 4.3 | Dump Station | Varies |
| Joseph T. Fallini Campground (formerly Mackay Reservoir) | 29.4 mi | 4.6 | Dump Station | Free |
| Sinclair Service Station | 39.8 mi | N/A | Dump Station | Free |
| Haven Motel & Trailer Park | 43.3 mi | N/A | Dump Station | Free |
| Richfield Public RV Dump Station | 58.9 mi | N/A | Dump Station | Free |
KOA - Craters of the Moon / Arco KOA Journey
0.7 miMountain View RV Park
0.7 miCottonwood Links Golf Course & RV Park
17.3 miButte County Dump Station
17.9 miWhite Knob Motel & RV Park
22.6 miRest Area - Mackay
24.7 miJoseph T. Fallini Campground (formerly Mackay Reservoir)
29.4 miSinclair Service Station
39.8 miHaven Motel & Trailer Park
43.3 miRichfield Public RV Dump Station
58.9 miTraveling to Arco by RV
Three major highways intersect at Arco, making navigation straightforward. US-20 runs east-west, connecting Idaho Falls (65 miles east) with Mountain Home. US-26 splits off toward Craters of the Moon, while US-93 heads north into the Lost River Valley.
Big rigs won't have issues on these routes. The highways are wide and well-maintained, built to handle commercial traffic and oversized loads heading to Idaho National Laboratory. Watch for crosswinds on US-20 -- the open desert doesn't block much.
Overnight parking is basically nonexistent in town proper. Your best bet is the RV parks that offer dump services, many of which allow overnight stays. Some travelers boondock on BLM land south of town, but you won't find RV waste disposal out there.
Fuel up in Idaho Falls before the drive. Arco's got gas stations, but prices run higher and hours can be unpredictable. Same goes for groceries and water -- stock your tanks in a bigger town. The 65-mile stretch from Idaho Falls doesn't offer much, so top everything off before you head west on US-20.
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Before You Go: RV Trip Essentials
Dump stations are only one piece of the trip puzzle. Before you set out for your trip to Arco, Idaho, it's worth taking thirty minutes to check that the basics are in place — the four areas below are where unprepared RVers most often get stung.
Check your RV insurance coverage
A standard auto policy rarely covers a Class A, Class C, or travel trailer the way a dedicated RV insurance policy does. If you're financing a motorhome, lenders typically require comprehensive and collision; full-timers should additionally price in vacation liability and personal belongings coverage. Rates vary widely by state and travel pattern — compare quotes from multiple RV-focused carriers before each season.
Know your roadside assistance options
RV-specific roadside plans tow motorhomes and trailers that regular AAA coverage won't touch — flat beds, mobile mechanics, tire service for duallies, and even emergency lockouts at remote campgrounds. Good plans cover your spouse and trailer even if you're driving a separate vehicle, and some include trip interruption reimbursement if a breakdown costs you a reservation.
Decide about an extended warranty early
Original manufacturer warranties on new RVs typically run 12–24 months — shorter than most buyers realize. An extended service contract (essentially a mechanical breakdown policy) covers the appliances, slides, levelling systems, and drivetrain components that can run $3,000–$10,000 to replace. The time to price one is before the factory coverage expires, not after something breaks.
Set up a travel rewards card for fuel and fees
A no-annual-fee travel or gas rewards card pays for itself on a single month of RV travel. Expect to spend $400–$800 per week combined on fuel, campgrounds, and propane — 3–5% cash back on gas alone covers the next oil change. For bigger trips, a sign-up bonus can offset campground fees for the whole season.
RVingLife is supported by advertising. Third-party ads on this page may include insurance quotes, roadside plans, warranty coverage, or financial products relevant to the topics above. We don't endorse any specific provider — compare multiple offers before you commit. Privacy policy.
Dump Station Costs in Arco
Of the several dump stations around Arco, some (a portion%) offer free RV waste disposal while a portion% charge a fee. The free options typically come with campground stays or are provided by the town for visitor convenience.
Paid stations run $5-15 depending on whether you're using other facilities. Some RV parks bundle the sani-dump fee with water fill-ups or overnight camping. If you're just passing through without staying, expect to pay closer to $10 for dump-only access.
The free sanitary dump stations get you in and out without opening your wallet, but they might have limited hours or require you to ask for access. Paid facilities usually offer better hours and clearer signage. Given how remote Arco is, any dump station beats driving another 50 miles on a full tank.
Contact station for pricing details.
Prices may vary. Always confirm with the station before visiting.
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Best Time to Visit Arco by RV
Winter
December-February
10-30°F
Crowds: Low
Bitter cold with frequent freezes. Many RV parks close entirely. Confirm dump station availability before arrival since pipes freeze solid.
Spring
March-May
35-65°F
Crowds: Medium
Shoulder season with unpredictable weather. Snow possible through April. Facilities start reopening in late April as travelers head toward Yellowstone.
Summer
June-August
75-90°F
Crowds: High
Peak season brings Yellowstone traffic and Craters of the Moon visitors. Dump stations stay busy midday. Mornings before 9 AM are quietest.
Fall
September-November
40-70°F
Crowds: Medium
Beautiful weather with golden aspens in the mountains. Crowds thin after Labor Day. Some facilities close by Halloween as temperatures drop.
Explore the Arco Area
AT&T is your friend out here. T-Mobile coverage drops to nothing once you're five miles outside Arco, and Verizon's spotty at best. Download your maps, campground info, and any entertainment before you lose signal. The EBR-I museum (Experimental Breeder Reactor I) sits about 18 miles southeast and costs absolutely nothing to visit. Even if nuclear history sounds boring, the tour's fascinating and takes maybe an hour.
The night sky around Arco is ridiculous. Minimal light pollution means you'll see the Milky Way without squinting. Drive out to Craters of the Moon after sunset and you'll understand why astronomers love this area. Bring a headlamp with a red filter so you don't kill your night vision.
Don't count on finding much after 6 PM. Restaurants close early, and some places shut down entirely on Sundays. If you're rolling in late, have dinner sorted. Water quality from town taps is fine, but it's got that mineral taste common to high desert wells. Not bad, just different.
National Parks Nearby
Frequently Asked Questions About Dump Stations in Arco
Where can I dump my RV tanks in Arco, Idaho?
Arco has several RV dump stations located primarily at private RV parks and some gas stations along US Highway 20. Mountain View RV Park is the newest facility in town, and most options are clustered along the main highway corridor for easy access.
Are there free dump stations in Arco?
Currently, some of the dump stations in Arco offer free access, meaning you'll need to budget for dumping fees. Most facilities charge between $8-15 for non-guests, though some offer discounts if you purchase fuel or other services at the same location.
How much does it cost to use a dump station in Arco?
Expect to pay $8-15 for dump station access in Arco, with most facilities charging around $10-12. The higher costs reflect the remote location and increased operating expenses for water delivery and waste removal. Some locations offer package deals if you're also buying fuel or camping.
What should I bring to an RV dump station in Arco?
Pack your own sewer hose, rubber gloves, and rinse water since not all stations provide these essentials. The high desert environment means spills dry quickly and leave stubborn residue, so having cleaning supplies and extra water is especially important here compared to more humid climates.
Do Arco dump stations stay open year-round?
Most dump stations operate year-round, but winter freezing can cause temporary closures or reduced hours at some facilities. The high elevation and exposed location mean pipes can freeze during cold snaps, so call ahead during winter months to confirm availability before making the trip.
Can I get fresh water and propane while dumping in Arco?
Several facilities offer fresh water fills along with dumping services, and a couple locations also provide propane refills. This is convenient since you might be heading into remote areas like Craters of the Moon where these services aren't available for many miles in any direction.
Are Arco's dump stations open year-round?
No, most close for winter due to freezing temperatures. A few RV parks stay open with heated facilities, but call ahead between November and March. Pipes freeze solid here, and many owners winterize rather than fight the cold.
Can I find potable water at dump stations in Arco?
Yes, most sanidumps include potable water hookups. The water's safe but has a mineral taste typical of desert wells. If you're sensitive to water flavor, consider filling tanks in Idaho Falls before driving out.
Do I need reservations to use RV dump stations?
No reservations needed for dump-only service. Just roll up during business hours. If you're staying overnight at an RV park, reservations help during summer when Yellowstone traffic fills campgrounds fast.
What's the closest dump station to Craters of the Moon?
Arco's stations are your closest bet, about 18 miles from the monument entrance. The national monument doesn't have RV waste disposal facilities, so handle your dumping in town before or after your visit.
Are there dump stations that accommodate large motorhomes?
Yes, most facilities handle rigs up to 40 feet without problems. The highways are built for commercial traffic, and RV parks cater to big coaches. Tight maneuvering isn't an issue here.
Where can I dump for free in Arco?
Three locations offer no-cost dumping, though some require you to be a campground guest or ask at the office. Check our listings for current details on which stations are truly free for pass-through travelers.
Are there free dump stations in Arco?
Yes — there are free RV waste disposal options available near Arco.
All Dump Stations Near Arco (10)
RV Dump StationsKOA - Craters of the Moon / Arco KOA Journey
RV Dump StationsMountain View RV Park
RV Dump StationsCottonwood Links Golf Course & RV Park
RV Dump StationsButte County Dump Station
RV Dump StationsWhite Knob Motel & RV Park
RV Dump StationsRest Area - Mackay
RV Dump StationsJoseph T. Fallini Campground (formerly Mackay Reservoir)
RV Dump Stations