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Hiking trails & Routes
United States
Oregon
Clatsop County

Upper Gnat Creek Trail

Moderate

2.7

(27)

99

hikers

Upper Gnat Creek Trail

03:16

11.9km

200m

Hiking

Hike the moderate 7.4-mile Upper Gnat Creek Trail through dense coastal forests, past a fish hatchery, and alongside Gnat Creek.

Last updated: February 26, 2026

Waypoints

A

Start point

Parking

Get Directions

1

2.56 km

Manmade Waterfall

Highlight • Monument

These falls were built in order to prevent fish from swimming upstream.

Tip by

2

3.40 km

Gnat Creek Trail

Highlight (Segment) • Trail

Gnat Creek Trail is among the best forest trails at the border between Clatsop County and Columbia County. It is great for mushroom picking, and is suitable for all levels as you can decide to turn back at any point.

Tip by

B

11.9 km

End point

Parking

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Way Types & Surfaces

Way Types

7.40 km

4.04 km

351 m

Surfaces

11.6 km

< 100 m

< 100 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

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Weather

Powered by Foreca

Tuesday 14 July

21°C

9°C

0 %

Additional weather tips

Max wind speed: 15.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

Where does the Upper Gnat Creek Trail start and where can I park?

The trail can be accessed from or passes through the Gnat Creek Fish Hatchery, which often serves as a primary access point. Parking is typically available at the hatchery.

Is the Upper Gnat Creek Trail dog-friendly?

The provided information does not specify dog rules for this particular trail. It's always best to check local regulations or signage at the trailhead regarding pets, especially when hiking near a fish hatchery.

What is the best time of year to hike this trail?

The trail offers a scenic experience through lush coastal forests year-round. While pine needles can help keep the trail less muddy in winter, heavy rainfall can make Gnat Creek rush or roar. Spring and summer might offer the best conditions for seeing wildflowers like trilliums and salmonberry.

Are there any permits or fees required to hike in Clatsop State Forest?

The provided information does not indicate any specific permits or entrance fees required for hiking the Upper Gnat Creek Trail within Clatsop State Forest. However, it's always advisable to check the official Oregon State Parks or Clatsop State Forest websites for the most current regulations before your visit.

What is the terrain like on the Upper Gnat Creek Trail?

The trail features a dynamic landscape with both ascents and descents, including 'up and down hills and through small drainages'. You might encounter 'rocky and rooted sections' and 'brush-y' areas. Small stream crossings are possible, where you may need to 'tiptoe on rocks', and occasionally you'll need to 'clamber over a couple small trees that have fallen across the trail'. Waterproof boots are recommended.

How long does it typically take to hike sections of the trail?

While the full Komoot tour is approximately 11.9 km (7.4 miles) with a duration of about 3 hours and 16 minutes, a 4.7-mile section starting from the fish hatchery is estimated to take four to five hours for hikers. This section involves an elevation gain of approximately 700 feet.

Is this trail suitable for beginner hikers?

The Upper Gnat Creek Trail is generally rated as 'moderate' difficulty, making it suitable for 'easy to moderate walking'. While it has varied terrain, including some ascents and descents, it is considered accessible for those with some hiking experience. Beginners should be prepared for uneven surfaces and potential small obstacles.

What unique features or points of interest will I find on the trail?

Along the route, you can discover several unique features. Look out for a distinctive large metal sculpture of Sasquatch. The trail also passes by the Gnat Creek Fish Hatchery, where you might observe rainbow trout, Chinook salmon, and sturgeon. Additionally, there are interpretive signs providing insights into the area's geological, natural, and indigenous history. Don't miss the Manmade Waterfall.

What kind of scenery and flora can I expect to see?

You'll hike through 'dense, mossy coastal forests' with 'huge fir trees' and vibrant green ferns. Gnat Creek itself is a prominent feature, often heard 'rushing' nearby. The forest is rich with diverse flora, including wildflowers like trilliums, wood sorrel, stream violets, and salmonberry, as well as skunk cabbage. Sunbursts occasionally pierce the dense canopy, illuminating the mossy surroundings.

Is the Upper Gnat Creek Trail a loop or an out-and-back route?

The Komoot tour for the Upper Gnat Creek Trail is an out-and-back route. While there are various sections, the primary experience described is not a full loop, though you can choose to hike shorter out-and-back segments.

Does the trail intersect other well-known paths?

Yes, the route primarily follows the official Gnat Creek Trail, covering about 66% of the route.

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