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Sinks Canyon with the Popo Agie River and forested canyon walls outside Lander

State Park · Wyoming

Sinks Canyon State Park

A Wind River foothills canyon outside Lander where the Popo Agie River vanishes into a limestone cave and rises again downstream, with hiking, climbing, fishing, and reservable camping.

The Sinks, where the Popo Agie River disappears into a limestone cave

Field briefing

Sinks Canyon State Park changes fast with season and elevation.

Before you go

Sinks Canyon is the easy-to-love stop on the way into the southern Wind River Range from Lander.

There is no day-use fee, so the planning moves are simple: reserve a campsite in summer, see the Sinks and the Rise first, and decide whether you want a short interpretive walk, a real canyon-wall hike, or a climbing day.

Best window
June to September for hiking, climbing, fishing, and camping
Signature routes
The Sinks and the Rise, North Slope Trail
Pack focus
Water, weather checks, layers

The landmarks worth the trip. Tap any photo to enlarge.

Location
Wyoming
Best time
June to September for hiking, climbing, fishing, and camping
Entrance
No day-use fee at Sinks Canyon State Park

When to go

Weather, crowds, and what the season changes about the trip.

Spring

Low crowds

Cool and variable, with high water in the Popo Agie and snow lingering on shaded trails and the upper canyon road.

Pack Waterproof footwear, layers, and traction for late snow on north-facing trails.

Summer

Moderate crowds

Warm days, cool canyon mornings, and the reliable window for hiking and climbing.

Pack Sun protection, water, and bug repellent near the river.

Fall

Low crowds

Crisp days, cottonwood color, and the best climbing temperatures before snow returns.

Pack Warm layer, headlamp for shorter days, and a wind shell for the canyon.

Winter

Low crowds

Cold and quiet, with reduced services and first-come off-season camping.

Pack Insulation, traction, and a plan for limited facilities.

Top things to do

  • The Sinks and the Rise

    The signature sight: the Popo Agie River pours into a limestone cave at the Sinks and reappears a quarter mile downstream at the Rise, where large trout hold in the pool.

  • North Slope Trail

    A climbing trail up the canyon's forested north wall for hikers who want elevation and overlooks above the river.

  • Canyon climbing crags

    Sinks Canyon is a regional sport and trad climbing destination, with crags reachable from the road and short approach trails.

How long to spend

Anchor the day around The Sinks and the Rise

Keep one flexible slot in the day, because weather, parking, and energy usually decide more than the map does. For one day in Sinks Canyon State Park, make The Sinks and the Rise the non-negotiable, add North Slope Trail only if the first stop runs clean, and keep Canyon climbing crags as the flexible finish.

  1. 1Start with The Sinks and the Rise: The signature sight: the Popo Agie River pours into a limestone cave at the Sinks and reappears a quarter mile downstream at the Rise, where large trout hold in the pool.
  2. 2Add North Slope Trail: A climbing trail up the canyon's forested north wall for hikers who want elevation and overlooks above the river.
  3. 3Use Canyon climbing crags as the optional finish, not as a reason to rush the whole day.

Plan your trip

Turn Sinks Canyon's conditions into water, pack, and sleep-system decisions.

Rock climbing cliffs and the upper canyon road in Sinks Canyon

Build around conditions

Let season, elevation, and weather set the plan.

Plan your trip

4 quick tools, already seeded for Sinks Canyon State Park. Tune the numbers around temperature swings, footing, layers, and how much margin the route needs.

  1. 01Size your water for a mild day on the trail
  2. 02Find the right daypack size for a day out
  3. 03Check you will sleep warm down to about 30F
  4. 04Estimate the stove fuel to pack for the trip

What to pack

Start with the gear decisions this park changes: footing, weather, camping, and water.

Pack planning

Decide what Sinks Canyon State Park asks of your kit before you start checking boxes.

Use this as a constraint check while you are still shaping the trip. The active checklist becomes useful once your route, dates, and sleep plan are set.

  • First constraintHydration and exposureWater, hat, sunscreen, sunglasses, Navigationmap, downloaded GPS, or a GPS watch, 3 more
  • Route realityFooting and tractionHiking boots, Hiking socks, Trekking poles
  • Load choicePack and carry systemDaypack
  • If overnightSleep and shelterTent, Sleeping bag, Sleeping pad

Checklist mode

22 items, grouped for the trip you are actually taking.

  1. Dates and season are set.
  2. Primary route, campground, or lodge is chosen.
  3. Water, footwear, and overnight needs are sized.

Gear for Sinks Canyon

The buying guides that match what Sinks Canyon asks of your kit, with our current top picks across budget and use case.

Where to stay

Camp inside the park at Popo Agie Campground if you want to be in the canyon at first light, or use the adjacent Sinks Canyon Campground in Shoshone National Forest as an alternative. Lander, about six miles down the canyon, has hotels, food, fuel, and gear when camping is full or the off-season closes services.

Camping reservations

Camping reservations

Reserve Sinks Canyon camping for summer, or take a first-come site off-season.

Popo Agie Campground is the in-park option, reservable in the summer season and first-come in the shoulder months. The park also offers yurts for campers who want a roof.

Reviewed June 11, 2026

Booking window

Wyoming State Parks campsites are reservable May through September through the Wyoming reservation system; off-season sites are first-come, first-served. Camping is generally limited to 14 days in any 30-day period unless posted otherwise.

  • Resident campsites run about $11 per night and nonresident sites about $20 per night, before convenience and reservation fees.
  • Yurts are available at a higher nightly rate for campers who want a hard-sided option.
  • Reserve summer weekends early, since the canyon is a popular gateway to the southern Wind Rivers.

Where to book or verify

Wyoming State Parks reservations

Official Wyoming reservation portal, or call 1-877-996-7275.

Sinks Canyon State Park page

Official park page with conditions, fees, and amenities.

Search Recreation.gov

Check for federal campground, backcountry, tour, and permit inventory tied to this park.

Campgrounds to know

Popo Agie Campground

Details
Booking
Reservable May to September; first-come off-season.
Season
Open seasonally with reduced off-season services.
Sites
Tent and RV sites plus yurts.
The in-park first check for campers who want to be in the canyon.

Sinks Canyon Campground (Shoshone National Forest)

Details
Booking
Check Shoshone National Forest for the seasonal window.
Season
Seasonal forest campground adjacent to the state park.
Sites
National forest campsites.
A good overflow option when the state park sites are full.

Getting there and practical info

Sinks Canyon with the Popo Agie River and forested canyon walls outside Lander

Plan the last mile as carefully as the destination.

Airports, roads, entrances, and local movement belong in the same plan.

Getting there

Get to Sinks Canyon State Park, then move through the park without wasting the day.

Access rhythm
Plan the last mile
Region
Wyoming
  1. Car strategy

    Sinks Canyon sits about six miles southwest of Lander on State Highway 131, which climbs into the canyon and continues up the gravel Loop Road toward the high country in summer.

  2. Car strategy

    Most visitors drive from Lander, then either turn the visit into a short interpretive stop or continue up the canyon for hiking and climbing.

Pair this with lodging: the simplest base is the one that removes a real morning problem, not just the one nearest the map pin.

Frequently asked questions

Why does the river disappear at Sinks Canyon?

The Popo Agie River flows into a cave in the canyon's limestone at a spot called the Sinks, travels underground, and reappears a quarter mile downstream in a calm pool called the Rise. The water takes longer to resurface than you would expect, and more water comes out at the Rise than goes into the Sinks.

Is there a fee to visit Sinks Canyon State Park?

No. Wyoming State Parks does not charge a day-use fee at Sinks Canyon. Camping fees apply if you stay overnight at Popo Agie Campground.

Can you camp at Sinks Canyon State Park?

Yes. Popo Agie Campground inside the park offers tent, RV, and yurt options, reservable in the summer season and first-come off-season. The adjacent Shoshone National Forest campground is an alternative.

Keep planning