Dinosaur National Monument · Colorado, Utah

Confluence/Sand Canyon Access Trail

1.5 mi of trail, end to end · Hike the Confluence Trail: 1.25 mi round trip in the Service's write-up · about 200 ft of climbing · 5,080 ft–5,177 ft · earth surface · trail class Minimally Developed · hiking

5,081 ft 5,124 ft · 1.5 mi high 5,177 ft

Trailhead Echo Park Trailhead 5,081 ft Drive there

Hike the Confluence Trail 1.25 mi round trip · the Park Service's write-up

30-120 Minutes · no dogs · Spring, Summer, Fall · season The paved Harpers Corner Road, which provides access to the Echo Park Road and Echo Park Campground, is typically impassable in winter, due to snow and ice. The unpaved Echo Park Road, is impassable for all vehicles when wet, regardless of the time of year. Stop in at one of the Visitor Centers to inquire about road conditions before attempting the drive to Echo Park Campground. (Note: The Canyon Visitor Center in Dinosaur, CO is closed in winter).

Start Echo Park Confluence Trail

The Green River flows past trees under a blue sky along the Confluence Trail.
This is the view downstream of the confluence of the Green and Yampa Rivers. Photo: NPS / Jake Frank

Distance: 1.25 miles (2.0 km) round trip

Elevation Change: None

Level of Difficulty: Easy

Type of Trail: Out and back

Trailhead: Echo Park Campground, at the end of the Echo Park Road

This short, easy walk ends with views of the confluence of the Green and Yampa Rivers at Echo Park. The trail is located near the loop at the very end of the Echo Park Road.

Hiking brochures are available at the Visitor Centers.

Road Conditions:

The Harpers Corner and Echo Park roads, which lead to Echo Park campground, are typically closed in winter due to snow and ice. The Echo Park Road is rugged, unpaved, and impassable when wet, regardless of the time of year. High-clearance vehicles with at least all-wheel-drive (AWD) are strongly recommended for the Echo Park Road. RVs and trailers are not permitted on the Echo Park Road.

Rules and Regulations

Pets and animals who provide only comfort or emotional support are prohibited on this trail.

Carry out all trash.

Collecting artifacts, fossils, plants, antlers, rocks, or other objects is prohibited.

Do not feed or approach wildlife.

Biking on trails is not permitted in Dinosaur National Monument.

Your Safety

There is no shade on this trail.

Be prepared for desert hiking. Wear a hat and sunscreen. Take water. A minimum of 1 gallon (3.8 liters) of water per person is recommended in summer.

Temperatures can exceed 100°F (38°C) in summer. To avoid the heat, hike in the morning or evening. Carry a headlamp if hiking near nightfall.

Let someone know where you are going and when you are due back.

Wear comfortable, sturdy shoes, such as hiking boots or athletic shoes. Open-toed shoes or sandals are not recommended.

Watch for wildlife. This is bear and mountain lion country. Keep small children close.

All natural areas pose risks. Your safety depends on your own good judgement.

Pets Pets and animals who provide only comfort or emotional support are prohibited on this trail. Per the Americans with Disabilities Act, working service dogs may go wherever their handlers go.

Accessibility The trail is an unpaved, relatively flat path along the river. The path is about 1 foot (30 cm) wide. The trail is not wheelchair accessible.

This hike on nps.gov

All 35 trails in Dinosaur National MonumentFind a trailOn the parks mapPark on nps.gov

About this trail's facts

The lines are the National Park Service's public trails layer, the trailheads and the waterfalls, views, peaks and historic places along them the Service's public points of interest, read 2026-10-16 and simplified for the map; the length is the line's, end to end. The write-ups are the Service's own "things to do" text, unedited. Heights come from USGS 3DEP through Terrain Tiles on AWS (Mapzen/Tilezen), read along each line and rounded; a short trail on steep ground can be off by a few tens of feet. Closures change: check the park's own site before you go.