Crown Zellerbach Trail – Crown Zellerbach Trail loop from Scappoose

If you're looking for a significant gravel biking challenge near Portland, the Crown Zellerbach Trail loop from Scappoose delivers a full day out. This difficult 43.8-mile (70.4 km) route, with 3092 feet (942 metres) of elevation gain, is a proper undertaking that will take you around 4 hours and 44 minutes to complete. It's a fantastic option for experienced gravel bikers seeking a long, varied ride through the Pacific Northwest landscape.

What to expect on Crown Zellerbach Trail – Crown Zellerbach Trail loop from Scappoose

The journey on the Crown Zellerbach Trail starts with a mix of paved and packed gravel sections near Scappoose, offering a smooth entry into the ride. As you push westward, the terrain gradually shifts to more rugged packed gravel and dirt, winding through lush fir forests and alongside peaceful creeks. The scenery is a living Pacific Northwest plant guidebook, eventually opening up to pastoral farmlands. Expect a long, steady climb as you ascend towards the Nehalem Divide, where grades can reach up to 10-20% in some sections, making for a demanding but rewarding experience. Wide tires are definitely recommended for comfort and traction, especially on the looser gravel found in the western parts of the trail.

Planning your visit

The Crown Zellerbach Trail is well-supported, with several trailheads offering amenities like parking, restrooms, picnic areas, and even bike repair stations. The eastern segments from Scappoose are particularly accessible, making them a good starting point. While the trail is multi-use, shared with hikers and equestrians, it generally provides a quiet escape. Consider visiting during drier seasons to avoid muddy sections, which can appear after rainfall, especially on the dirt portions of the trail.

• Distance: 43.8 miles (70.4 km)
• Elevation gain: 3092 feet (942 metres)
• Difficulty: difficult
• Estimated time: 4 hours and 44 minutes