
Place
Challenging

Cache Creek is a long, rewarding backcountry walk out of the Lamar Valley that trades crowds for wildlife, big views, and a dash of Yellowstone weirdness. Expect a challenging day (or better, a backpack) on a route reported around 37.6 miles total as an out-and-back with roughly 5,000 feet of cumulative gain. Some itineraries turn it into a ~38-mile loop using neighboring trails; either way, it’s not a flat valley stroll—there are real ups and downs and a notable drop into the Cache Creek drainage.
Once you leave the main valley, the trail undulates across open benches and descends into the Cache Creek drainage, with broad views back toward the Lamar and the confluence where Cache Creek meets the river. This is classic Lamar country: bison trails etched into hillsides, wallows dotting the flats, and long river bends. Side trips to Wahb Springs and grimly named Death Gulch add a unique thermal twist—steaming features and even a small cascade above the springs are highlights for curious backpackers.
Bison are a constant presence here. Multiple herds roam the area and may block the trail, forcing patient detours or creek crossings to maintain safe distance. Sign and sightings from wolves and both black and grizzly bears are common in reports, and elk, pronghorn, badgers, and sandhill cranes round out the cast. Nights in fall often come with wolf howls and elk bugles echoing from the benches—part of the magic, and a reminder to store food properly and carry bear spray.
The route is exposed leaving the valley, then rolls along the drainage with occasional braided paths and splits that can make navigation fussy—especially where bison trails crisscross the landscape. Expect creek fords (Soda Butte Creek and Cache Creek); early-season or high water can shut down crossings and force reroutes. Bugs can be relentless in summer, with ear-seeking flies that make a head net or bandana worth their weight in gold.
Water is generally available, but choose sources carefully. Avoid pulling from Cache Creek immediately below thermal areas and major bison crossings if you can. Backpackers commonly base at established backcountry sites along the route (for example, sites near Cache Creek) and day-hike to Wahb Springs/Death Gulch or explore side drainages. Overnight trips in Yellowstone require a backcountry permit.
June through October is the typical window. September stands out: cooler days, fewer bugs, and a good chance of elk bugling after dark. Start early for cool temps and better wildlife viewing; midday sun on the exposed benches is no joke. If you prefer a lower-commitment sampler with similar scenery, stick to the Lamar River corridor and turn around when you’ve had your fill.
If you want Yellowstone’s backcountry to feel wild—big skies, live geology, and animals that shape your itinerary—Cache Creek delivers. It’s long, exposed, and sometimes messy to navigate, but that’s exactly why it’s memorable.
Park at the Lamar River Trailhead in Lamar Valley near the bridge over Soda Butte Creek; this corridor provides access to the Cache Creek junction. In high water, some fords may be impassable and require reroutes.
Expect bison to block the trail and force detours; maintain distance and be patient. Carry bear spray due to black and grizzly bears. Creek fords (Soda Butte and Cache) can be unsafe at high flows. The route has confusing splits and braided bison paths. Parts are exposed to sun and wind. Avoid drawing water below thermal areas and major bison crossings.
