Dispersed camping sites around Arco, Idaho sit within high-desert terrain at elevations ranging from 5,300 to 7,000 feet. Summer temperatures typically reach 85°F during daytime hours but drop significantly at night, often into the 40s. Most accessible campsites feature minimal development with rocky, sagebrush-dominated surroundings and limited natural shade. Winter snow and spring mud can make access roads impassable without appropriate vehicles.
What to do
Fishing for brown trout: Silver Creek Public Access Dispersed hosts multiple fishing spots along its shoreline. The clear water and rocky features create ideal habitat for catching brown trout. Camper Taylor A. confirmed finding "brown trout" and noted the parking area sits "right by the river."
Wildlife viewing opportunities: Expect nocturnal wildlife activity near Big Lost River Rest Area Hwy 20. The desert environment attracts various species, particularly at dawn and dusk. Camper Risen F. reported "we even heard coyotes in the middle of the night" while staying at this rest area.
Wildflower identification: Bear Creek's higher elevation supports diverse wildflower blooms from late May through July, depending on snowmelt timing. Camper Jamie M. mentioned they "enjoyed the nearby creek and beautiful wildflowers that were blooming" during their stay at Bear Creek Dispersed Campground.
What campers like
Accessible fishing spots: Big Lost River Dispersed provides direct river access without difficult hiking. Camper tom P. appreciated the area's "nearby stream and fishing" options, noting the campground offered "surprisingly easy access" to these features.
Primitive solitude: Many rustic camping areas near Arco remain uncrowded even during peak summer months. Silver Creek West Access Area provides space between camping parties. Camper Rodderz noted "the placement of the campers that were already there were fairly dispersed" allowing privacy despite other visitors.
Natural shade options: Several sites offer respite from summer sun. At Silver Creek Public Access Dispersed, camper Liona L. found "spots near a slow moving river with bathrooms and shade and picnic tables" making summer camping more comfortable.
What you should know
Road quality varies significantly: Many access roads require careful navigation. Big Lost River Dispersed requires traversing uneven terrain. Camper Mondo Moto Media mentioned the site is "even worth the bit of washboard road you must go over" to reach the camping area.
Seasonal pest considerations: Mosquitoes become problematic near water sources during summer months. Silver Creek West Access Area camper Jennifer R. warned visitors to "beware mosquitos" and noted "the mosquitos are intense" during their stay.
Cell service inconsistency: Mobile coverage varies by carrier and exact location. At Silver Creek West Access Area, camper Rodderz reported "I was able to connect on AT&T (two bars) but the data speeds were fairly low and spotty at times."
Weather preparedness essential: Temperature swings of 40+ degrees between day and night occur regularly. Pack appropriate clothing for both hot days and cold nights, regardless of season.
Tips for camping with families
Vault toilet locations: Most rustic sites near Arco have limited bathroom facilities. Mackay Reservoir Fishing Access offers toilet access, though during busy periods maintenance may vary. Pack toilet paper and hand sanitizer for all sites.
Kid-friendly water access: Look for camping spots with gentle water entry points. Birch Creek Camp features multiple riverside options. Camper Nichole D. noted they "had LOTS of spots right next to the river" allowing for safer water play areas.
Wildlife education opportunities: Use the natural setting for impromptu nature lessons. Silver Creek Public Access Dispersed camper Annie C. recalled "just me, Silver Creek, some mule deer, and the cicadas and birds" creating natural wildlife viewing opportunities.
Pack extra water: No reliable potable water exists at most sites. Calculate 1-2 gallons per person per day, plus additional for cooking and cleaning.
Tips from RVers
Levelness assessment: Many rustic sites require careful positioning. Birch Creek Camp on Eight Mile Canyon Road offers decent parking but requires scouting. Camper James W. called it a "middle of nowhere spot" with varied terrain for parking.
Length restrictions: Larger rigs face limited options. At Mackay Reservoir Fishing Access, camper Gabriel M. reported "my AWD suv had no problem towing my 30ft camper up and down to the waters edge" but noted limited space for multiple large vehicles.
Fire regulations vary: Check current fire restrictions before arrival as they change frequently based on conditions. Not all sites permit fires year-round, and seasonal bans occur regularly during high fire danger periods.
