Oneonta Falls
Swimming hole in Portland, Oregon · Waterfall
Oneonta Falls is a falls swimming hole. It is at Historic Columbia River Hwy (Oneonta Trailhead), Cascade Locks, OR. Fee notes: Lower Oneonta Gorge closed — no swim access; Oneonta Trail day hiking free (parking conge…. Best season: Weekday early mornings for trailhead parking.
Typical season: Weekday early mornings for trailhead parking
About Oneonta Falls
Oneonta Gorge / Lower Oneonta Falls east of Portland in the Columbia River Gorge (Oregon) is still one of the internet’s top waterfall-swim searches. but the **creek slot has been closed** since the 2017 Eagle Creek Fire while land managers work through overcrowding, safety, and ecological protection.
Entering the closed gorge can bring serious federal fines. Do **not** treat viral photos as current access. Nearby **Oneonta Trail (#424)** is a separate open hike (Triple Falls is a common goal), and Horsetail / Ponytail Falls loops cover classic Gorge scenery without trespassing the creek slot.
Check Columbia River Gorge National Scenic Area alerts before you go. For legal swimming day trips from Portland, pivot to other Oregon swimming holes rather than forcing Oneonta’s closed corridor.
Key facts
Structured details for trip planning — verify access and fees with the land manager before you visit.
- Address
- Historic Columbia River Hwy (Oneonta Trailhead), Cascade Locks, OR 97014
- Water type
- Falls
- Water body
- Oneonta Creek
- Fee
- Lower Oneonta Gorge closed — no swim access; Oneonta Trail day hiking free (parking congested; timed-use rules may apply elsewhere in the G…
- Nearest town
- Portland
- State
- Oregon
- Coordinates
- 45.58983, -122.07530
- Best season
- Weekday early mornings for trailhead parking; avoid treating summer as a gorge swim season.
- Access difficulty
- Oneonta Trail to Triple Falls is a steep day hike; the closed gorge route is off-limits.
- Parking
- See facilities notes
- Camping
- Not at Oneonta Trailhead; use nearby designated campgrounds.
- Land manager
- U.S. Forest Service
- Activities
- Hiking open Gorge trails; photography from legal viewpoints
- Facilities
- Minimal trailhead parking/kiosk; no facilities inside the closed gorge.
- Last verified
- July 15, 2026
The experience
- Best time to visit Weekday early mornings for trailhead parking; avoid treating summer as a gorge swim season.
- Access Oneonta Trail to Triple Falls is a steep day hike; the closed gorge route is off-limits.
- Facilities Minimal trailhead parking/kiosk; no facilities inside the closed gorge.
- Camping nearby Not at Oneonta Trailhead; use nearby designated campgrounds.
Highlights & features
- Unique basalt gorge formations
- Crystal-clear creek swimming
- Over 50 species of wildflowers
- Historic Oneonta Tunnel and Bridge
- Seasonal photography opportunities
- 25-million-year-old basalt walls
- Botanical area with rare plants
- Historic Oneonta Creek Bridge
How to get there
For legal hiking (not the closed gorge slot): use West Oneonta / Oneonta Trailhead on the Historic Columbia River Highway east of Multnomah Falls / Horsetail Falls. Lower gorge creek access remains closed pending a longer-term access decision.
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1. From Portland, take I-84 east to the Historic Columbia River Highway exits toward Multnomah Falls corridor.
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2. Park at the small Oneonta Trailhead pullout (very limited spaces) or use nearby legal lots and walk carefully along the highway shoulder only where permitted.
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3. Hike Oneonta Trail #424 toward Triple Falls — this is NOT the closed creek gorge walk.
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4. Do not climb fences or enter posted closed Oneonta Gorge / creek bottom.
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5. Confirm USFS trail alerts (storm damage and blowdown are common).
Plan your visit
Oneonta Falls works well as a day trip from Portland or Gresham. Stock up in town, then head to the water with food, water, and sun protection. Combine the swim with camping at Flora Dell Falls or browse more Oregon waterfall spots in our directory. For the full list in Oregon, see our state directory.
Access & fees
Access is via an unofficial, unmaintained trail requiring wading in Oneonta Creek. Parking is at the Horsetail Falls Trailhead. No fee is required for parking or access, but services are not provided at the site. The water depth and current vary seasonally.
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What to pack for Oneonta Falls
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Frequently asked questions
Can you swim at Oneonta Gorge / Oneonta Falls?
No legal swimming access to the classic creek slot and Lower Oneonta Falls while the gorge is closed. Choose other open Gorge swimming holes instead.
Is Oneonta Gorge open in 2026?
The Oneonta GORGE remains closed. Oneonta Trail (a separate hillside trail to Triple Falls) is typically open — confirm the latest Forest Service alert before you drive.
What happens if you enter closed Oneonta Gorge?
Trespassing the closure can bring federal fines (historically hundreds of dollars, with higher penalties possible). Cameras and enforcement have been used in peak season.
How do you get to Oneonta from Portland?
I-84 east to Historic Columbia River Highway recreation sites east of Multnomah Falls. Park only in legal pullouts — lots are tiny and fill early.
Is Oneonta Falls free?
There is no entry ticket for the scenic area’s general trailheads, but parking is limited and some Gorge sites use timed permits. The closed gorge is simply not an option.
What are good alternatives to Oneonta Gorge?
Hike Oneonta Trail to Triple Falls, or visit Horsetail/Ponytail Falls and other open Gorge day hikes. For swimming, browse legal Oregon river and creek listings instead of the closed slot.
Why is Oneonta Gorge closed?
Post–Eagle Creek Fire hazards plus overcrowding/ecological damage prompted a long closure while agencies evaluate safer controlled access options.
Is Oneonta Trail the same as Oneonta Gorge?
No. Oneonta Trail #424 climbs the hillside to waterfalls like Triple Falls. The gorge is the creek-bottom corridor that stays closed.
Explore more nearby swimming guides
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Map & location
Culture & history
Designated a botanical area by the U.S. Forest Service, Oneonta Gorge highlights the unique biodiversity of the Columbia River Gorge. The Oneonta Creek Bridge adds historical significance.
Conservation
Follow Leave No Trace principles to protect the fragile ecosystem. Avoid disturbing plants and wildlife. Dispose of waste responsibly.
Sources & updates
Official land managers cited on this page
Always confirm current rules, closures, and fees on the agency site before visiting.
Spotted outdated access, fees, or safety info? Send a correction with the page URL — we review every submission.