Dump station · near Castle Rock, WA · I-5 exit 49
Mt. St. Helens RV Park Dump Station
Mt. St. Helens RV Park Dump Station is an RV dump station near Castle Rock, WA, about 1.8 miles from I-5 exit 49. We do not have a confirmed fee for it yet.
Dump station details
- Type
- Dump station
- Highway
- Interstate 5 exit 49
- Fee
- Fee unknown
- Fresh water
- Unknown
- Address
- Nature Trail, Castle Rock, WA 98611
- Location
- near Castle Rock, WA (Cowlitz County)
- GPS
- 46.30624, -122.87713
- Website
- mtsthelensrvpark.com
Hours, fees and seasonal closures change. If you're going out of your way, call ahead or check the operator's website first. Not sure what to expect? See what RV dump stations typically cost. Something wrong? Report a change.
Source: OpenStreetMap contributors. Checked November 2026.
Map
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Frequently asked questions
Is the dump station at Mt. St. Helens RV Park Dump Station free?
We have not confirmed the fee yet. Truck stops and campgrounds often charge non-customers, so call ahead. The nearest station confirmed as free is City of Longview RV Dump Station, about 13 miles away.
Can I fill fresh water at Mt. St. Helens RV Park Dump Station?
We have not confirmed fresh water here. Anderson Park lists potable water, about 35 miles away.
What exit is Mt. St. Helens RV Park Dump Station near?
It is about 1.8 miles from I-5 exit 49, at Nature Trail near Castle Rock, WA.
Other RV dump stations nearby
| Name | Location | Distance | Type | Fee | Fresh water |
|---|---|---|---|---|---|
| Castle Rock RV Dump Station (S Loop) | Near Castle Rock, WA | 3 mi | Dump station | Fee unknown | — |
| City of Longview RV Dump Station | Longview, WA | 13 mi | Dump station | Free | — |
| County Line Park Dump Station | Near Puget Island, WA | 19 mi | Dump station | Fee charged | — |
| Mossyrock RV Dump Station (Beach Rd) | Near Mossyrock, WA | 22 mi | Dump station | Fee unknown | — |
| Upper Dumpstation | Near Onalaska, WA | 22 mi | Dump station | Fee charged | No |
| Lower Dump Station | Near Onalaska, WA | 22 mi | Dump station | Fee charged | No |
| Mossyrock RV Dump Station (A Loop) | Near Mossyrock, WA | 24 mi | Dump station | Fee unknown | — |
| Cathlamet RV Dump Station (2nd St) | Cathlamet, WA | 25 mi | Dump station | Fee unknown | — |
All dump stations near Castle Rock · All Washington dump stations