St. Anthony Sand Dunes spread across eastern Idaho about 8 miles west of the town of St. Anthony, a field of clear, shifting white quartz sand covering roughly 10,600 acres. Managed by the Bureau of Land Management's Upper Snake Field Office, the dunes rise as high as 400 feet and stretch for miles, with the Egin Lakes Campground providing a developed base on the edge of the sand.
Best season — Late spring through fall; some riding areas close in winter
At a glance
The facts worth checking before you roll out
Conservative, source-minded facts for planning your visit — always worth confirming against current conditions before you travel.
State
Idaho
Manager
BLM — Upper Snake Field Office
Size
~10,600 acres of white quartz sand
Dune height
Up to 400 ft
Camping
Egin Lakes Campground (48 sites)
On the ground
The sand here is unusually pale — clear white quartz that shifts with the prevailing winds — and the field's scale makes it a destination rather than a roadside curiosity. Set 8 miles west of St. Anthony, it draws a steady mix of visitors across the seasons.
For RV travelers the Egin Lakes Campground is the practical anchor, with 26 of its 48 sites reservable on Recreation.gov and the remaining 22 available first-come, first-served. That gives planners flexibility whether they book ahead or arrive on the day.
Portions of the riding area close seasonally to protect the landscape, and a day-use fee applies, so confirm current fees, reservations, and any seasonal closures on the Bureau of Land Management site before your trip.
Official sources
- Bureau of Land Management — St. Anthony Sand Dunes Bureau of Land Management
Nearby & related
Keep planning Idaho
Sourced costs, campground directories, and the places worth a detour — the next layer of Idaho trip planning.
- Idaho RV rental costFuel · camping · tax, sourced
- Idaho RV-friendly campgroundsHookups, rig limits, booking tips
- Campervan & van rentals in IdahoVan-life routes, rules & rigs
- Caves & cavernsShow-cave trip guides
- National monumentsProtected-land guides
- Scenic landmarksBucket-list overlooks
- RV lifehacksCamp-smarter field tricks
Planning an RV trip near St. Anthony Sand Dunes: An RV Traveler's Guide?
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