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Marble Mountain Group Picnic Site
Moderate to BookNational Forest

Marble Mountain Group Picnic Site

Gifford Pinchot National Forest

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As of September 2026, Marble Mountain Group Picnic Site is a campground in Gifford Pinchot National Forest with 1 campsite. Marble Mountain Group Picnic Site is booked through Recreation.gov.

  • PermitSnag checks Marble Mountain Group Picnic Site for availability and tells alert holders when a site opens up.
  • Marble Mountain Group Picnic Site is located at 46.1307ยฐ N, 122.1698ยฐ W.
people allowed on each site
74

Marble Mountain Group Picnic Site reservations and next available dates

September 2026

open, tap to book on Recreation.govsold outin your alert

Campsites at Marble Mountain Group Picnic Site

  • Group 1
  • Accessible 1

Amenities

  • restrooms
  • potable water

At a glance: Setting: Mountain.

Things to do: hiking, climbing, photography.

All sites at Marble Mountain Group Picnic Site, as listed by Recreation.gov

SiteTypeSleepsAccess
Marble Mountain Group Picnic AreaGroup74Accessible

About Marble Mountain Group Picnic Site

Overview

Marble Mountain Group Picnic Site is on the Gifford Pinchot National Forest and is located at the Marble Mountain SnoPark on the south side of Mount St. Helens. A part of the WA State Sno-Park program in the winter months, Marble Mountain Group Picnic Site is offered as a day use group picnic area Saturdays only, May - September. (The site may be available for reservation as early as April or as late as June depending on conditions, i.e., whether there is snow on the ground or not). This site is a great location for a family reunion, birthday gathering or outdoors group meeting. The 1000 square foot shelter, built in 2018, contains three large picnic tables and a wood stove for heating. There is no potable water available at this site. The shelter is wired for electricity to power the lights, outlets and fans; you must provide your own generator and 110 V connector cord (see photos). This shelter is maintained by the US Forest Service in cooperation with a volunteer organization.

Recreation

During the summer, the Marble Mountain recreaiton site provides trailhead access to the Worm Flow climbing route, the Loowit trail, and several cross-country hiking and mountain biking loop trails such as the Pine Marten, Fir, Silver and Pika Trails. Nearby trailheads include June Lake, Ape Canyon and Lava Canyon. The site is also close to the Lahar Viewpoint along Forest Road 83. Ape Cave is also nearby and makes for a great family experience (tickets required, open May-October).

Facilities

Facilities available include a 1000 square foot accessible shelter with picnic tables and a wood stove. There is an accessible CXT vault toilet in the parking area. There is abundant parking for vehicles and trailers. The area is gated closed to the public in the summer; only your group will have access to the shelter. The facility is for day use only, 9 AM to 9 PM; no overnight use is allowed.

Natural Features

Marble Mountain Group Picnic Site is on the Gifford Pinchot National Forest, tucked away in the Douglas fir trees at 2700 feet in elevation.

Nearby Attractions

Marble Mountain Group Picnic Site is located near the south entrance to Mount St. Helens National Volcanic Monment. Also along Forest Road 83 is Lahar Viewpoint, an interpretive site where you can view and learn about the power of the 1980 Mount St. Helens eruption. Douglas fir and pine trees are slowly reestablishing themselves on the landscape devastated by the landslide from one of Mount St. Helen's glaciers during the eruption. Other nearby attractions include the Trail of Two Forests boardwalk, Ape Cave Interpretive Site, June Lake and Lava Canyon Trails.

Rules and notices at Marble Mountain Group Picnic Site

Recreation.gov does not date these notices. We last read them on September 30, 2026. Check Marble Mountain Group Picnic Site on Recreation.gov

Notices from Recreation.gov

Marble Mountain Group Picnic Site is a Washington State SnoPark location from November- March. The picnic shelter is available to rent mid-June to mid-September, Saturdays only.

Group size is limited to 74 persons.

There is no potable water on site.

The area is a day use area only, 9 AM to 9 PM, no overnight camping permitted.

The area is gated and locked during the summer when not rented. Upon rental, you will receive a code to open the gate and doors and you are responsible for ensuring the facility is secure prior to departure.

The facility can be powered by a generator and 110 V connector cord (visitor-supplied).

Amplified music is not permitted.

Marble Mountain Group Picnic Site FAQ

How hard is it to get a campsite at Marble Mountain Group Picnic Site?

Marble Mountain Group Picnic Site is rated "Moderate to Book" based on historical demand. With 1 sites available, you have good chances of finding availability, especially on weekdays.

How do I find last-minute availability at Marble Mountain Group Picnic Site?

Cancellations happen frequently at Marble Mountain Group Picnic Site, especially 1-2 weeks before check-in dates. PermitSnag monitors availability 24/7 and sends instant alerts when sites open up due to cancellations. This is often the best way to snag popular campsites.

How many campsites does Marble Mountain Group Picnic Site have?

Marble Mountain Group Picnic Site has 1 campsites.

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