Confluence Trail (#4433)


Sandy River Delta Trail map

Sandy River Trail vicinity map. Download a full Sandy River Delta Trail vicinity map & key. (.pdf)

Area Status: Open
This area is Open

Two people hike on a gravel trail in an open meadow-like area.

This 1.2 mile accessible trail leads to the Sandy River Confluence bird blind site, an eliptical blind where vertical slats of black locust wood artist list the species encountered by Lewis and Clark during the full length of their 1904-1906 Corps of Discovery expedition. Designed by the artist Maya Lin and made possible by Confluence Project, the blind allows those who wait quietly a chance to view undisturbed birds and wildlife, or simply soak in the majesty and history of the site. 

Confluence is the only trail at Sandy River Delta where dogs are required to be on-leash, primarily for the comfort of visitors because it is designed to be ADA accessible. Given that the Sandy River Delta is such a favorite spot for dog walkers, we do ask that you please take this rule seriously and steer clar of the trail with your canine friend, or have your dog's leash handy. Please pick up after your pet, which includes packing out their waste and not leaving it trailside.

At a Glance

Current Conditions: Open
Operational Hours: Trailhead gates are closed during the following hours: 
  • Oct 1 - Nov 2: 8 PM - 6 AM
  • Nov 3 - Mar 8: 6 PM - 6 AM
  • Mar 9 - May 31: 8 PM - 6 AM
  • Jun 1 - Sep 30: 10 PM - 6 AM
Permit Info: Permits required for commercial uses including dog walking services.
Open Season: Year round
Usage: Heavy
  • Dogs are required to be on leash in parking lot and on Confluence (Sandy River Delta #4417) trail to the bird blind
  • No motorized vehicles permitted outside of parking area
  • No camping
  • No vehicles without trailers in trailer parking slots
Closest Towns: Troutdale, OR
Water: No
Restroom: Vault toilets
Operated By: Forest Service
Information Center: Columbia River Gorge National Scenic Area

General Information


Sandy River Delta Trailhead

From Portland, OR: Travel east on I-84 through Troutdale, then take exit #18. Follow the signs to Sandy River Delta located on north side of the interstate; just east of the Sandy River.

From Cascade Locks, OR: Travel west on Interstate 84 for approximately 26 miles to exit #18 and follow signs to Sandy River Delta.

Recreation Map

Map showing recreational areas. Map Information



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Horse Riding & Camping

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Horse Riding

An extensive system of trails and roads along confluence of the Sandy and Columbia rivers provides users with a variety of choices.  This is a very popular spot for walking dogs, so expect to encounter many dogs along the trail.


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Areas & Activities


  Area/Length : 
1.1 miles

  Latitude : 

  Longitude : 

  Elevation : 
50 - 50