Merced River: Yosemite’s Beating Heart of Water and Stone
Follow the river through Yosemite valley—where snowmelt powers waterfalls, trout populate quiet pools, and the canyon’s stone tells an ancient story.
The Merced River moves like a living seam through Yosemite: a narrow ribbon that swells with spring snowmelt, eddies through meadow and granite, and sings under bridges in the valley where visitors gather to watch light crawl across El Capitan. Step close enough and you can feel it—cold, relentless, insistent. It does not merely sit in the landscape; it shapes it, gouging channels, whispering through willows, and daring you to test its current at a shallow crossing.
Trail Wisdom
Respect seasonal flows
Spring snowmelt can make the Merced fast and hazardous—avoid entering the river during high runoff and watch for changing levels after storms.
Shoes with traction
Granite and wet cobble are slippery; wear shoes or boots with aggressive soles and consider neoprene river shoes for wading.
Pack a California fishing license
If you plan to fish, purchase a license beforehand and follow catch limits and seasonal regulations.
Early starts beat crowds
Set out at sunrise for calmer trails, better light for photography, and more river solitude.
Local Knowledge
Hidden Gems
- •Swinging Bridge for late-afternoon reflections and quieter river views
- •Short side channels and willow pockets along El Portal Road for birding and solitude
Wildlife
mule deer, river otter
Conservation Note
River health hinges on snowpack and visitor behavior—stay on trails, pack out waste, and minimize shoreline disturbance to protect riparian habitats.
The Ahwahnechee people lived along the Merced for generations; later, glacial carving and river processes shaped Yosemite Valley’s iconic cliffs and falls.
Seasonal Guide
spring
Best for: spectacular waterfalls, whitewater rafting (guided), wildflowers
Challenges: high, dangerous flows, slick trails and heavy mist near falls
Spring brings the Merced to full voice—dramatic flows and active waterfalls, but also hazardous currents and soggy trails.
summer
Best for: fishing and wading, camping by the river, flatwater paddling in shallow sections
Challenges: lower water levels can expose hazards, crowds in Yosemite Valley
Warm, drier conditions make summer ideal for fishing and camping, though river flow drops and popular spots fill up.
fall
Best for: clear, crisp light for photography, quieter trails, catch-and-release trout fishing
Challenges: cooler nights and variable water temperature, shorter daylight hours
Fall calms the valley—flows moderate, foliage shifts, and the river settles into a measured rhythm.
winter
Best for: snowy riverbank scenes, solitude and muted winter light
Challenges: road or facility closures, icy conditions and cold water temperatures
Winter renders the Merced stoic and quiet—beautiful but requiring winter travel skills and awareness of closures.
Photographer's Notes
What to Bring
Sturdy hiking shoes with good tractionEssential
Grip on wet granite and river cobble dramatically reduces slips and falls.
Layered clothing and waterproof shellEssential
Temperatures swing widely; a breathable waterproof layer handles mist and sudden showers.
Hydration system or water filterEssential
Bring a water filter or purifier to top off from streams and reduce carried weight.
Wading shoes or neoprene socks
Useful for safe, comfortable entry to shallow pools and for fishing access.
Common Questions
Can I swim in the Merced River?
Swimming is possible in calm, shallow stretches but is risky during high runoff; always assess currents and avoid swimming near rapids or under waterfalls.
Do I need a permit to camp near the river?
Yes—camping in Yosemite Valley requires a campground reservation, and backcountry camping requires a wilderness permit; check National Park Service regulations before you go.
Are there guided rafting trips on the Merced River?
Commercial guided rafting and float options operate seasonally when flows are safe; book through authorized outfitters and confirm flow conditions.
What fish species are in the Merced River?
Anglers commonly catch rainbow and brown trout; regulations and seasonal restrictions apply, and a California fishing license is required.
Is the Mist Trail safe during high water?
The Mist Trail can be wet and slippery; during high runoff certain sections may be closed or hazardous—use extra caution and consider alternate routes when flows are high.
Are dogs allowed along the river trails?
Dogs are allowed in certain Yosemite areas but are restricted on many trails and in wilderness zones—check current park rules for leash requirements and trail closures.
What to Pack
water filter or purification tablets for refilling; sturdy, grippy hiking shoes for wet granite; layered, quick-dry clothing for temperature swings; California fishing license if you plan to fish.
Did You Know
The Merced River drains a large portion of the central Sierra Nevada and was integral—along with glacial action—in forming Yosemite Valley’s characteristic U-shape and its towering granite walls.
Quick Travel Tips
1) Reserve Yosemite Valley campgrounds well in advance; 2) Check current Merced flow and road conditions before traveling; 3) Carry cashless payment options—some services in the park prefer them; 4) Start hikes early to avoid heat and crowds.
Local Flavor
Yosemite Village offers ranger talks, a small selection of cafes and the Ansel Adams Gallery; local concession-run amenities connect visitors to interpretive programming and guides familiar with Merced River dynamics.
Logistics Snapshot
Nearest major access: Yosemite Valley (road access varies seasonally). Permits required for backcountry and campground reservations. Carry a California fishing license and observe river warnings during high runoff.
Sustainability Note
Minimize bank erosion by staying on trails, avoid building rock dams, use established campsites, and pack out all trash to protect riparian ecosystems.