Rocky Mountain RV campgrounds: four park options compared for 2026

By Romana | Updated September 23, 2026

Rocky Mountain National Park has one west-side RV campground and three on the Estes Park side, but only three of the four are still accepting campers on September 23. Glacier Basin ended its season on September 8. Aspenglen is scheduled through September 28, Timber Creek through October 5, and Moraine Park through October 19, when it shifts to winter operation.[1]

Short answer: Moraine Park is the best-equipped choice and the only one with electric sites. Glacier Basin is the east-side dry-camping alternative for rigs up to 35 feet, but it is already closed for 2026. Aspenglen is the small, quiet east-side option for setups up to 30 feet and no on-site dump. Timber Creek is the west-side choice, also capped at 30 feet, with a fill and dump station. For a late-September trip, the live choice is Moraine Park, Aspenglen or Timber Creek.

Four-campground decision table

The dates and campground-wide limits come from the park's current 2026 camping page.[1] Moraine Park and Glacier Basin service and release details come from their live Recreation.gov records.[2][3] Aspenglen and Timber Creek details come from their corresponding federal booking records.[4][5]

Pick the side before the campsite

Moraine Park, Glacier Basin and Aspenglen are on the east side of the park. Timber Creek is the only west-side campground and sits about eight miles north of the Grand Lake Entrance.[5] That split should drive the reservation.

Choose an east-side campground if Bear Lake Road, Estes Park, Horseshoe Park and the east-side trailheads make up most of the itinerary. Moraine Park and Glacier Basin sit directly along the Bear Lake Road corridor. Aspenglen is closer to the Fall River Entrance, which is useful when the day starts around Horseshoe Park or Old Fall River Road.[2][3][4]

Choose Timber Creek for Grand Lake, the Colorado River Trail area and west-side days. Crossing the park to use an east-side campground adds Trail Ridge Road to every transfer. The road was open to through travel when this guide was checked, but NPS warns that alpine weather can bring wind, snow, ice and temporary closures at any time.[7] A Timber Creek reservation remains reachable from Grand Lake if the high section closes; it does not make an east-side schedule convenient.

Moraine Park: strongest services and the highest park limit

Moraine Park has the broadest RV utility of the four. Recreation.gov says it can take an RV up to 40 feet or a trailer-and-tow-vehicle setup within that limit. It also lists 49 sites with 20-, 30- or 50-amp service. There are no campsite water or sewer connections, but the campground has drinking water, flush toilets and a dump station near the ranger station.[2]

The shower listing needs a careful read. Moraine Park has solar-shower stalls, not supplied hot showers. Campers bring and fill their own shower bag; the stalls do not provide water. Laundry is unavailable.[2]

Electric inventory does not make every site large-rig friendly. In our September 23 snapshot, 92 active records permitted at least one RV-style equipment category, yet only 10 supplied a positive equipment-length figure. Many of the remaining records used zero in that field while publishing separate maximum-vehicle or driveway measurements. Zero is missing guidance, not permission for a rig of any size. Use the campground's 40-foot ceiling as the outer boundary, then check the exact site's vehicle, driveway, entry and equipment fields before paying.[2]

Moraine Park is also the late-season anchor. Summer operation runs until noon October 19, followed by the campground's winter pattern.[1] Travelers crossing that date should not assume the same loops, water access or reservation method continue unchanged.

Glacier Basin: useful Bear Lake base, but finished for 2026

Glacier Basin is five miles up Bear Lake Road, across from the Park & Ride. It has a campground shuttle stop, drinking water and flush toilets. RVs dry camp: there are no hookups. A dump station is available, but showers, laundry and portable showers are not.[3]

The 35-foot maximum deserves more attention than the number alone suggests. Recreation.gov defines a trailer measurement here as trailer, hitch and vehicle together.[3] A 28-foot travel trailer behind a full-size pickup may exceed the rule even though the trailer body appears to fit.

The booking data is more complete than Moraine Park's. Of 64 active records permitting RV-style equipment in our saved snapshot, 63 had a positive equipment maximum. Thirty-two reached at least 30 feet and 20 reached the campground ceiling of 35 feet. Those counts help narrow a search, but they do not override the current site page or the combined-length rule.[3]

Glacier Basin's family-site inventory uses a layered release. Some sites appear on a rolling six-month window, with selected inventory held until two weeks or one week before arrival. Group sites use a rolling one-year window.[3] That can create late openings, but it cannot help after the seasonal close. The campground shut at noon September 8 for 2026.[1]

Aspenglen: small-rig east-side choice without a dump

Aspenglen sits near the Fall River Entrance and has the smallest RV-capable pool in this comparison. The park sets a 30-foot campground limit.[1] Our Recreation.gov record audit found 26 active records accepting an RV-style category; 11 published a positive allowance of 30 feet and none went above it.[4]

It has flush toilets and drinking water, but no electric, water or sewer hookups. There is no dump station. Recreation.gov directs campers to Moraine Park for the nearest park dump. Showers and laundry are unavailable, and portable showers are prohibited.[4]

Generator rules are tighter here than at the other three. Aspenglen permits generator use only in Loop C during the posted morning and evening periods; Loops A and B are generator-free.[4] That makes loop selection important for anyone relying on air conditioning, a medical device or battery charging.

Reservations follow the six-month, two-week and one-week pattern. An “NR” result means that inventory has not been released, not that the campground is sold out.[4] Aspenglen remains open on September 23, but only until noon September 28.[1] It is a narrow late-season window, not a general autumn fallback.

Timber Creek: west-side access with a strict combined-length cap

Timber Creek is the only in-park choice on the west side. It is eight miles from the Grand Lake Entrance at about 8,900 feet.[5] That location avoids a Trail Ridge Road crossing for Grand Lake arrivals and puts west-side trails within a much shorter drive.

The 30-foot limit applies to the entire connected combination: tow vehicle, hitch and trailer. Recreation.gov says a setup over that total cannot stay.[5] This is the least forgiving published limit in practical terms. Many ordinary tow vehicles paired with mid-size trailers will fail it.

Our snapshot found 59 active records accepting RV-style equipment. All 59 published a positive limit, and 22 reached 30 feet.[5] The clean data helps with filtering, but the campground-wide combined-length rule still controls.

Timber Creek has potable water, restrooms, dish sinks, an RV freshwater fill and a dump station during its operating season. It has no hookups, showers or laundry.[5] Every loop allows generators during the posted windows, which gives dry campers more flexibility than Aspenglen.

The booking page uses the same mixture of six-month, two-week and one-week releases as Aspenglen and Glacier Basin.[5] The season has an important correction: NPS initially announced an August 10 closure for sewer rehabilitation, then postponed that project. Reservations now run through October 4, with checkout and closure at noon October 5.[1] Old trip notes that still show August are stale.

Timed entry changes with the campground

The park's 2026 timed-entry system remains active on September 23. Bear Lake Road reservations cover the daily period between 5 in the morning and 6 in the evening through October 19. The rest-of-park window covers 9 in the morning through 2 in the afternoon and ends October 13.[6]

A campground booking covers initial park entry beginning at 1 p.m. on check-in day. Moraine Park, Glacier Basin and Aspenglen bookings include Bear Lake Road access.[1][2][3] Timber Creek includes the rest of the park but excludes Bear Lake Road.[1][5]

That distinction matters if Timber Creek is the base for an east-side hiking day. The campground confirmation alone will not open the Bear Lake Road gate during controlled hours. Reserve the correct Bear Lake Road permit or plan entry outside its timed window. Camping fees and park entrance fees also remain separate.[1][6]

Save the complete confirmation offline and carry photo ID. NPS warns that cell service at entrance stations is unreliable and partial screenshots may not be accepted.[1] Road and campground conditions remain a departure-day check.

How to book a site that fits

1. Measure the traveling setup, not the living space. Include the hitch, front storage, rear rack, spare tire and tow vehicle where the rule uses combined length.
2. Reject any setup above the campground ceiling: 40 feet at Moraine Park, 35 at Glacier Basin, and 30 at Aspenglen or Timber Creek.[1]
3. Open the exact campsite record. Check permitted equipment, maximum vehicle length, driveway length, entry type and site photos. Those fields answer different questions.
4. Treat a zero equipment length as missing data. Do not turn it into an unlimited allowance.
5. Keep slides, awnings and tow-vehicle parking in mind. A nominally long spur may still be a poor fit if trees, slope or neighboring space block deployment.
6. Read “NR” as not yet released. At Glacier Basin, Aspenglen and Timber Creek, check again at the two-week and one-week release points.[3][4][5]
7. Save the booking page and confirmation. Recheck the NPS camping dates and road status shortly before departure.[1][7]

Bottom line

For most east-side RV trips, Moraine Park is the first choice. It has the highest campground limit, the park's only electric-site inventory, a dump station and Bear Lake Road access. The catch is uneven site-level length data, so a 40-foot campground maximum does not mean every reservable site fits a 40-foot rig.[2]

Glacier Basin is a solid dry-camping base for a connected setup no longer than 35 feet, with better site-length coverage and an on-site dump, but its 2026 season is over.[1][3]

Aspenglen works for rigs no longer than 30 feet when Fall River geography matters more than tank service. Timber Creek is the west-side answer, also at 30 feet combined, with its own fill and dump station. On September 23, Aspenglen has five scheduled nights left in its season, Timber Creek has twelve, and Moraine Park has twenty-six before its transition date.[1]

Editorial note: This guide was checked against NPS and Recreation.gov on September 23, 2026. The campsite audit covered 514 official records exposed by the four booking pages, including 241 active records that permitted at least one RV-style equipment category. Rankings and planning advice are RVCamping.info analysis. No firsthand stay, drive or campsite inspection is claimed.

Sources

1. Campgrounds at Rocky Mountain National Park — 2026 dates, length limits, reservation rules, timed-entry treatment and Timber Creek project update. Accessed September 23, 2026.
2. Moraine Park Campground — official services, electric-site count, 40-foot limit, timed-entry access and campsite records. Accessed September 23, 2026.
3. Glacier Basin Campground — official services, combined-length rule, release windows and campsite records. Accessed September 23, 2026.
4. Aspenglen Campground — official services, generator limits, release windows and campsite records. Accessed September 23, 2026.
5. Timber Creek Campground — official west-side location, combined-length rule, services, release windows and campsite records. Accessed September 23, 2026.
6. Rocky Mountain National Park announces 2026 timed entry system — permit hours and October end dates. Accessed September 23, 2026.
7. Rocky Mountain National Park road status — live Trail Ridge Road status and weather caveat. Accessed September 23, 2026.