Queen’s Laundry Trail

Overview

This mellow meadow-and-thermal walk trades boardwalk crowds for solitude, wildlife, and Yellowstone history. The standard loop (“Sentinel Meadows to Queen’s Laundry”) is about 5.0 miles total, mostly flat with minor gain, and commonly rated moderate due to wet, mucky stretches. A shorter out-and-back to the Queen’s Laundry area runs roughly 3–4 miles total if you turn around there. Either way, you’ll skirt the Firehole River, wander through broad grasslands, and pass eye‑catching hydrothermal features along the way.

Route and What You’ll See

Park at the end of Fountain Flat Drive, cross the bridge over the Firehole River, and head out toward Sentinel Meadows. Expect a mix of old road and single‑track. Early on, look for striking hydrothermal features near the corridor (including Ojo Caliente Spring) and sinter mounds dotting the meadow country. Open views abound and, with them, frequent bison sightings and occasional coyotes. There’s little shade, so the sun can feel relentless on warm days.

Near the loop’s far end, you’ll view the remains of Queen’s Laundry—the unfinished 1881 bathhouse—the oldest historic building in the park and the first structure the federal government built for public use in any national park. Per regulations, admire it from the trail only; do not approach off‑trail. The route stays remarkably flat overall (around 150 ft total gain on the 5‑mile loop), but sections of meadow can be wet, mucky, or faint.

Difficulty and Trail Feel

While elevation is minimal, the footing and conditions bump this to a moderate outing: expect boggy stretches, faint tread across meadows, and potential wildlife delays if bison occupy the path. Crowds are usually light compared with the marquee geyser basins, which is a big part of the appeal here.

Tips and Variations

• Standard loop: ~5.0 miles total. Mostly level, occasional mud.
• Shorter option: Out-and-back to the Queen’s Laundry vicinity at roughly 3–4 miles total, then return the same way.
• Route-finding: In marshy meadows the path can briefly disappear—watch for markers and stay attentive.
• Extensions exist via adjacent meadows/old road corridors, but expect more route‑finding and, in places, bikes on the old road segment.

Best Time to Hike

Spring through early fall is the sweet spot. Spring brings lush meadows but also the wettest, boggiest footing. Summer offers long days and wildlife viewing, but it can be hot with insects and high sun exposure—start early. Cooler mornings often mean better wildlife activity and a quieter trail. Fall brings fewer bugs and crisp air, though daylight is shorter.

Know Before You Go

This trail skirts active hydrothermal ground—stay on the designated path at all times; off‑trail travel in these areas is illegal and dangerous. Bison commonly graze in Sentinel Meadows and may block the way; give them a very wide berth and wait them out or turn around. Carry bear spray and know how to use it. Waterproof footwear pays off in the marshy sections. There are no facilities at the dead‑end parking; plan accordingly.