Colorado

Rocky Mountain National Park's signature campground sits in a wide glacial valley at 8,160 feet where elk herds graze the meadows at dawn and Longs Peak dominates the southern horizon. The 244 sites are a mix of tent and RV-friendly loops, with a dump station and potable water but no hookups. Reservations open six months out on Recreation.gov and the summer window (June–September) books out within minutes. Trail Ridge Road, the continent's highest paved highway, is a 20-minute drive.

Fourteen walk-in sites tucked into an aspen grove at the base of the Maroon Bells — arguably the most photographed mountains in North America. Silver Bell and its sister campgrounds, Silver Queen and Silver Bar, sit along Maroon Creek just two miles below Maroon Lake. Cars aren't allowed up the road during daylight in summer, so the parking-lot-to-campsite walk is short and the views from the tent door are uncrowded. Reservations required mid-June through September.

The only campground inside Great Sand Dunes National Park, Piñon Flats' 88 sites sit at 8,175 feet with the 750-foot dunes rising directly to the east and the 14,000-foot Sangre de Cristo peaks behind them. Sunset on the dunes from the campground is unforgettable. Sites are first-come, first-served May 1 through late October. Nights drop into the 40s even in July, and the sand gets blisteringly hot by 10 AM — an early start to climb the dunes is mandatory.

Mesa Verde's only campground sits inside the park at 7,700 feet, with 267 sites spread across a pinyon-juniper plateau a mile from the Far View visitor center. Morefield is the only way to camp within striking distance of the cliff dwelling ranger tours without a 45-minute drive. The campground has a small store, showers, laundry, and an evening amphitheater program. Reserve through the park concessioner — it rarely fills but the early-morning tour slots are the prize.

Black Canyon of the Gunnison's south rim campground has 88 sites on the canyon's edge, with the 2,000-foot sheer walls a short walk from camp. The campground is quiet, cool, and small enough that neighbors feel like fellow pilgrims to one of the National Park System's most dramatic gorges. No hookups, no cell service — the draw is the geology. Loops A and B are tent-only; Loop C accommodates RVs. The Painted Wall, North America's tallest cliff, is visible from the rim trail.

Rocky Mountain National Park's west-side campground sits at 8,900 feet along the headwaters of the Colorado River, a world away from the lottery scramble at Moraine Park. Moose are regulars in the meadow, the Kawuneeche Valley trails start within walking distance, and the drive over Trail Ridge Road to the east side is one of the great American roadtrips. The 98 sites include pull-throughs but no hookups. Reserve early — the west side gets less press but fills fast in July.

On Dillon Reservoir at 9,100 feet, Peak One is the Summit County RV sweet spot — 79 sites with Gore Range views, a dump station, and lake access for paddling and fishing. I-70 is a five-minute drive, making this a favorite staging campground for 14er climbs around Breckenridge and Leadville. Reservations open six months ahead through Recreation.gov and summer weekends book immediately. The cross-lake bike path to Frisco is a highlight — bring wheels.

On the shore of Silver Jack Reservoir in the Uncompahgre National Forest, this 60-site campground is the kind of place Colorado locals keep quiet about. The aspens surrounding the lake turn brilliant gold the last week of September, the trout fishing is excellent, and the Owl Creek Pass road continues past camp into some of the state's best 14er backcountry (Matterhorn, Wetterhorn, Uncompahgre). First-come, first-served with no hookups. The drive in from Highway 550 is an experience in itself.

Cherry Creek is Denver's backyard state park and the Front Range's most popular RV destination — 880-acre reservoir, full hookups, beach, marina, and direct access to a 35-mile paved trail network. The campground has over 130 sites arranged in several loops, with showers, laundry, and a dedicated pet loop. It's not a wilderness experience — DIA planes pass overhead and the skyline is visible on clear days — but for travelers breaking up an I-70 trip or based in Denver for a few days, nothing beats the convenience. Book 6 months out for summer weekends.

A mile below Cameron Pass in the Roosevelt National Forest, Chambers Lake sits at 9,170 feet on the shore of a stocked alpine reservoir with the Medicine Bow peaks rising to the west. It's the trailhead for the Rawah Wilderness — one of Colorado's least-visited alpine wilderness areas — and a quieter alternative to RMNP for backpackers willing to drive the Poudre Canyon. 52 sites, no hookups, reservable through Recreation.gov from late June through September.