Dump station · near Mammoth, WY
Mammoth RV Dump Station (Loop A)
Mammoth RV Dump Station (Loop A) is an RV dump station near Mammoth, WY. It is free to use. Fresh water is available. It is for customers or registered guests only.
Dump station details
- Type
- Dump station
- Fee
- Free
- Who can use it
- Customers / guests only
- Fresh water
- Available
- Grey water
- Grey-water drain available
- Address
- Loop A, Mammoth, WY
- Location
- near Mammoth, WY (Park County)
- GPS
- 44.73607, -110.48843
Hours, fees and seasonal closures change. If you're going out of your way, call ahead or check the operator's website first. Something wrong? Report a change.
Source: OpenStreetMap contributors. Checked November 2026.
Map
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Frequently asked questions
Is the dump station at Mammoth RV Dump Station (Loop A) free?
Yes, it is listed as free to use. Free sites sometimes add a fee or close for the season, so check signs on arrival.
Can I fill fresh water at Mammoth RV Dump Station (Loop A)?
Yes, potable water is listed as available. Use a separate hose for fresh water, never the rinse hose.
Other RV dump stations nearby
| Name | Location | Distance | Type | Fee | Fresh water |
|---|---|---|---|---|---|
| Canyon Campground | Near Mammoth, WY | 0.3 mi | Campground | Fee unknown | Yes |
| Fishing Bridge RV Park | Near Mammoth, WY | 13 mi | Campground | Fee unknown | — |
| Bridge Bay Campground | Near Mammoth, WY | 14 mi | Campground | Fee unknown | Yes |
| NPS RV Dump Station | Near Mammoth, WY | 19 mi | Dump station | Fee charged | — |
| Grant Village Campground | Near Mammoth, WY | 24 mi | Campground | Fee unknown | Yes |
| Mammoth RV Dump Station (C Loop) | Near Mammoth, WY | 24 mi | Dump station | Fee unknown | — |
| Yellowstone Grizzly RV Park Dump Station | West Yellowstone, MT | 31 mi | Dump station | Fee unknown | — |