Best North Cascades Campgrounds on Highway 20: Where to Camp by Trip Style and Reservation Difficulty

• Best first choice for a classic SR-20 park base: Newhalem Creek. It keeps you east of Marblemount but still close to the visitor-center side of the corridor.
• Best small park-corridor option near Newhalem: Goodell Creek. Use it if you want a simpler base before Newhalem, but do not treat it as an easy last-minute fallback because it is small.
• Best for Diablo Lake and Thunder Knob plans: Colonial Creek. It beats Newhalem if your next morning starts east of Newhalem, but it is less convenient if you need food, fuel, or supplies from Marblemount.
• Best for Cascade River Road plans: Marble Creek or Mineral Park. They only make sense if you are turning off SR-20 at Marblemount toward Cascade River Road, not if your main plan is Diablo Lake or Washington Pass.
• Best east-side fallback when SR-20 is open: Lone Fir, Klipchuck, or Early Winters. They can work after Washington Pass, but they are the wrong backup if your morning target is Newhalem, Diablo, or Cascade River Road.

Do not use Gorge Lake as your normal backup. As of this update, Gorge Lake Campground remains closed until further notice because of debris-flow and flooding hazards after the 2023 Sourdough Fire. Check the official campground page before building any plan around it.

If you are still shaping the whole trip, use the Two-Day Highway 20 Itinerary after you choose your campground zone.

Plan A: For a one-night SR-20 trip from the west side, try Newhalem Creek, Goodell Creek, or Colonial Creek first. These keep you inside the main park corridor and avoid turning your morning into a long repositioning drive.

Plan B if park reservations are gone: First check whether any seven-day inventory has opened at Newhalem Creek, Goodell Creek, or Colonial Creek. Several park campgrounds use a mix of six-month and seven-day booking windows, so “sold out months ago” does not always mean every site is gone.

Plan B if you arrive late: Do not aim for a tiny campground or a closed campground as your safety net. If you do not have a confirmed site, it is usually smarter to choose a lodging or campground option closer to Concrete, Rockport, or Marblemount than to keep driving deeper into a low-service corridor after dark.

Plan B if SR-20 is closed east of the park: Do not count Lone Fir, Klipchuck, or Early Winters as west-to-east backups. Check the Seasonal Access Guide before you build a plan that crosses Washington Pass.

Plan B if you lose the campground lottery: Read the Dispersed Camping Near North Cascades guide before assuming forest roads are a simple backup. The rules, road conditions, and practical safety issues matter more than the map makes it look.

Newhalem Creek Campground: This is the cleanest first choice for many west-to-east visitors. It puts you past Marblemount and near the Newhalem side of the park corridor, but it does not push you as far east as Colonial Creek.

Newhalem Creek beats Colonial Creek if you still want easier access back toward Marblemount services. The tradeoff is that it is not as convenient for a Diablo Lake or Thunder Knob morning.

Goodell Creek Campground: Goodell works best as a smaller Newhalem-area base. It is useful when you want to stay inside the corridor without going all the way to Diablo, but its small size makes it a weak “we will just show up” plan in peak season.

Colonial Creek North and South: Colonial Creek is the better pick when your next day is centered east of Newhalem. It beats Newhalem for Diablo Lake, Thunder Knob, and an early push toward Washington Pass because you are already farther along SR-20.

The tradeoff is services. If you need fuel, food, firewood, or a simple resupply, handle that before you pass Marblemount. The park corridor does not have the same service cushion as the towns west of Newhalem.

Gorge Lake Campground: Treat Gorge Lake as a check-first option, not a backup plan. It is small, primitive, and closure-sensitive, so it should not carry your whole trip unless the official page clearly shows it is open and available.

Marble Creek and Mineral Park are not Highway 20 campgrounds in the same practical sense as Newhalem or Colonial Creek. They are Cascade River Road campgrounds, reached by turning off SR-20 at Marblemount.

Marble Creek Campground: Use Marble Creek if your plan already includes Cascade River Road. It is about 8.6 miles up the gravel road from Marblemount, and there is no potable water or cell phone coverage at the campground.

Mineral Park Campground: Mineral Park is farther up Cascade River Road, about 15 miles from Marblemount and beyond Marble Creek. It is better for a Cascade River Road-focused trip than for a general SR-20 trip because it pulls you away from Newhalem, Diablo, and Washington Pass.

If Cascade River Road is part of your plan, read the Cascade River Road Access Guide before choosing between Marble Creek and Mineral Park. Road access matters more here than campground preference.

Lone Fir, Klipchuck, and Early Winters are useful only when your trip has crossed Washington Pass or is starting from the Methow side. They are not good replacements for Newhalem or Colonial Creek if your next morning is west of Diablo.

Lone Fir Campground: Pick Lone Fir for a Washington Pass or eastbound SR-20 plan. It beats backtracking to Newhalem when you are already over the pass, but it is a poor choice if your main goal is Diablo Lake or Cascade River Road.

Klipchuck Campground: Klipchuck works as a first-come, first-served Methow-side option. Download the Recreation.gov app before the trip because some Okanogan-Wenatchee National Forest campgrounds use Scan and Pay.

Early Winters Campground: Early Winters is another east-side option for travelers already committed to the Mazama and Washington Pass side of the route. It is not a west-side park campground substitute.

Tip: Do not wait until you are standing at a kiosk to figure out mobile payment. Weak service and app setup problems are a bad combination after a long SR-20 day.

• If you pass Marblemount without fuel or basic supplies, do not expect the park corridor to fix it for you.
• Do not book east of Washington Pass if your first morning goal is Newhalem, Diablo Lake, or Cascade River Road.
• Do not assume first-come means easy. It only means you must physically arrive and claim a site.
• Do not treat a campground listed on a map as open. Gorge Lake is the clearest example of why official status matters.
• Do not use Cascade River Road campgrounds as general SR-20 overflow unless that side road is part of your plan.
• Do not count on mobile service for maps, payment, or reservation checks once you are deep in the corridor.

For fuel, food, and supply planning before you enter the low-service part of SR-20, use the Last Gas and Supplies Guide.

• North Cascades Camping
• Newhalem Creek Campground
• Goodell Creek Campground
• Colonial Creek North
• Colonial Creek South
• Gorge Lake Campground
• Marble Creek Campground
• Mineral Park Campground
• Lone Fir Campground
• Klipchuck Campground
• Early Winters Campground
• SR-20 Closure Dates