Tamarack Flat Campground opened in the 1930s as one of Yosemite's original car campgrounds along the Tioga Road corridor, and it has changed remarkably little since. Fifty-two tent-only sites spread through a red fir and lodgepole pine forest at 6,300 feet, with Tamarack Creek as the only water source. If you want a quiet, wooded alternative to the valley floor crowds, this is worth a serious look - provided you can time the seasonal opening right and don't mind filtering your drinking water.
The campground typically opens sometime in June and closes in mid-October, but that window depends entirely on the Tioga Road plowing schedule. As of 2026, the road was temporarily closed due to a forecast of snow, so check the NPS road status line at 209/372-0200 (then 1, 1) before heading up. This is the kind of place where timing matters more than most visitors expect.
Location and Access
Tamarack Flat sits 3 miles off the Tioga Road on a narrow access road that discourages large vehicles. The turnoff is 4 miles east of Crane Flat, roughly 20 miles (45 minutes) from Yosemite Valley via the Big Oak Flat Road. The park service explicitly advises against bringing RVs or trailers here - the road is narrow, rough in places, and the campsites themselves are not designed for anything larger than a van or a tent.
The elevation will hit you if you come straight from the valley floor. At 6,300 feet, the nights cool down fast even in July, and the thin air means more exertion than you expect on short walks. Most first-time visitors underestimate the temperature drop between Valley and Tamarack Flat by at least 10 degrees.
Driving directions
From Yosemite Valley, take Big Oak Flat Road northwest to the Tioga Road junction at Crane Flat. Turn right (east) onto Tioga Road and drive 4 miles to the Tamarack Flat access road on your left. From Highway 120 west of the park, enter through the Big Oak Flat Entrance and continue east past Crane Flat.
Cell service drops out at Crane Flat and does not return until you reach Tuolumne Meadows. Download your directions and reservation confirmation before you lose signal.
Site Details and Layout
The campground has 52 sites, all tent-only. No hookups, no dump station, no RV pads. Each site comes with a fire ring, a picnic table, and enough flat ground for one or two tents. The sites are spaced further apart than most Yosemite campgrounds - you can hear your neighbors, but you are not sharing a parking strip with them.
The fee is $24.00 per site per night as of 2026. Reservations are required. There is no first-come, first-served option here, which is unusual for a Tioga Road campground. Book ahead on Recreation.gov, and do it early - the 52 sites fill fast for July and August weekends.
What the park website does not mention
The site layout is not uniform. Some sites sit close to the creek and get more moisture (read: mosquitoes in June and early July). Others are upslope among the pines with better breezes and fewer bugs. No site numbers are "bad," but if you are booking online, the campsite map matters more here than at a more uniform campground like Upper Pines.
There are no pull-through sites. You will be backing into a spot off a narrow one-way loop road. If you have a long truck or a van with poor rear visibility, bring a spotter.
Water and Facilities
Tamarack Creek runs along the edge of the campground, and that is your only water source. The park service requires you to filter, treat, or boil all water from the creek. Giardia is present in Sierra Nevada waterways - do not skip treatment.
Restrooms and amenities
Vault toilets are scattered through the campground. They are maintained regularly during the operating season, but by August they can get unpleasant in the afternoon heat. Bring hand sanitizer.
There are no showers, no electrical hookups, no dump station, and no potable water spigots. This is as close to dispersed camping as a developed campground gets in Yosemite. You pack in everything you need, and you pack out everything you brought - including trash.
The nearest gas station is at Crane Flat, about 4 miles back down the Tioga Road. It also sells basic supplies, ice, and firewood, but expect premium prices.
Activities and Nearby Trails
Tamarack Flat works best as a base camp for exploring the Tioga Road corridor and the high country. You are roughly midway between Crane Flat and Tuolumne Meadows, which puts a lot of options within reasonable driving distance.
Hiking in the area
The trail register at the campground entrance will give you current conditions, but the consistent recommendation from rangers is the May Lake hike out of Tenaya Lake, about 20 minutes east. A 2.5-mile trail climbs 1,000 feet to a high Sierra lake with views of Mount Hoffman and the Cathedral Range.
Closer to camp, the Tuolumne Grove of giant sequoias is about a 20-minute drive west toward Crane Flat. The trail drops 500 feet over 1.5 miles to the grove - which means the return is uphill. Pack extra water for this stretch.
For a full day, drive east to the Cathedral Lakes Trailhead. The 8-mile round trip to Upper Cathedral Lake puts you at the base of Cathedral Peak, one of the most recognizable granite spires in the range. The trail climbs about 1,000 feet and stays above 9,000 feet for the upper half.
Scenic driving
The Tioga Road itself is worth driving end to end at least once during your stay. Rangers will tell you that early morning is your best bet for pulling over at Olmsted Point before the tour buses arrive. From this overlook you can see Half Dome's north face in the distance and the Tenaya Canyon drainage below.
Wildlife viewing
Keep an eye out for mule deer in the campground at dawn and dusk. The park supports over 400 species of vertebrates, and the Tamarack Flat area gets regular visits from black bears. The common mistake - and almost everyone makes it - is leaving food in the car overnight. Use the bear-proof storage lockers at your site. Rangers cite more violations for improper food storage around here than any other single issue.
Seasonal Considerations
Tamarack Flat is not a summer-long guarantee. The opening date shifts year to year based on snowpack and Tioga Road clearing. In heavy snow years, the campground may not open until late June. In low snow years, early June is possible.
The 2026 season is complicated by the Tioga Road closure as of this writing. Monitor the NPS road conditions page or call the hotline. Do not assume the road will reopen by Memorial Day - it often does not.
When to book
July and August are peak season. September offers cooler temperatures, fewer mosquitoes, and less competition for sites. The trade-off is shorter daylight and a non-trivial chance of early snow. Mid-September is the sweet spot for most experienced visitors.
October reservations are a gamble. The campground closes mid-month, and an early storm can shut the Tioga Road abruptly. If you book for October, have a backup plan that does not involve driving over the pass.
Practical Takeaways
- Book ahead. Reservations are required and the 52 sites fill weekly in peak season.
- Filter your water. Tamarack Creek looks clean but carries Giardia. Bring a filter or purification tablets.
- No RVs. The access road and site layout will not accommodate trailers or large motorhomes.
- Pack for cold nights. 6,300 feet means temperatures drop into the 40s even in August. A 20-degree bag is appropriate.
- Bring a bear canister or use the lockers. Food storage violations accumulate quickly here.
- Fuel up at Crane Flat. The closest gas is 4 miles back, and the station has limited hours.
- Download everything. No cell service from Crane Flat through Tuolumne Meadows.
- Check road status before you leave home. The Tioga Road closes unpredictably for snow in spring and fall.
Final Thoughts
Tamarack Flat is not the easiest campground to reach, and it does not offer any amenities beyond the basics. That is its draw. The sites feel secluded, the forest is quiet, and you are close enough to the Tioga Road highlights to make day trips practical without sleeping next to the highway. For anyone who wants the Yosemite high country without the density of Tuolumne Meadows Campground down the road, Tamarack Flat delivers exactly that.
The seasonal window is narrow. Plan around it, not against it. And if you get a site here in late September, you will understand why people come back.
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For more information, see our complete Yosemite National Park Guide.