Upper Gnat Creek Trail

The Upper Gnat Creek Trail is generally rated as an intermediate, or "blue difficulty," singletrack trail for mountain biking. It offers a varied experience, with some technical sections and others that are more flowy.

While parts of the trail, particularly immediately after crossing Highway 30, might feel beginner-friendly, the trail as a whole is rated intermediate. The lower section, from Gnat Creek Campground, features numerous roots and log drop-offs that can be challenging for beginners. Experienced riders will find it more manageable.

You'll ride on a native dirt pathway winding through a dense, mossy coastal forest. The terrain varies; the lower section has many roots and some log drop-offs, while the upper section features steeper climbs but fewer roots and more flowy sections where you can maintain speed. You'll be surrounded by large Sitka spruce and western hemlock trees, with views of Gnat Creek.

The trail is approximately 11.8 km (7.3 miles) long. While individual times vary based on skill and pace, the estimated duration for mountain biking is around 1 hour and 6 minutes.

A significant landmark and possible trailhead is the Gnat Creek Fish Hatchery. Parking is generally available at designated trailheads along the route.

Beyond the lush forest and Gnat Creek, you'll encounter the beautiful Barrier Falls. The trail itself, known as the Gnat Creek Trail, is a highlight. Keep an eye out for mushrooms and a quirky Sasquatch cutout along the way.

As the trail is located within Clatsop State Forest, dogs are generally permitted. However, they must be kept on a leash to protect wildlife and ensure a pleasant experience for all trail users.

The trail is often described as lush and green, suggesting it's enjoyable during wetter seasons. However, sunbursts occasionally pierce through the thick tree canopy, making sunny days particularly beautiful. Consider visiting in late spring, summer, or early fall for the best balance of weather and trail conditions.

Generally, there are no specific permits or entrance fees required for day use of trails within Clatsop State Forest. However, it's always a good idea to check the official Oregon Department of Forestry website for any current regulations or alerts before your visit.

Yes, the trail offers a diverse ride. The lower section provides technical challenges with roots and log drop-offs, while the upper section, after the fish hatchery, transitions to steeper climbs and flowy descents where you can catch speed. It's also one of the few trails in the Astoria region approved for mountain biking, making it a unique destination.