Mosier, Oregon

If you're seeking a touring cycling adventure that combines stunning natural beauty with a challenging ride, the Historic Columbia River Highway and Memaloose Hills Loop delivers. This difficult 21.2-mile (34.1 km) route features 1957 feet (597 metres) of elevation gain, typically taking around 2 hours and 20 minutes. You'll traverse paved, car-free sections of the Historic Columbia River Highway, offering continuous views of the Columbia River Gorge, before transitioning to the rolling oak forests of the Memaloose Hills, where spring wildflowers create a spectacular display. Keep an eye out for the historic Twin Tunnels and expansive vistas from Memaloose Lookout.

For the best experience, consider riding in March or April to witness the Memaloose Hills in full bloom with yellow balsamroot, purple lupine, and red paintbrush. While the Historic Columbia River Highway sections are generally smooth, be prepared for potentially unpaved, steep, and slick terrain if you venture into the Memaloose Hills, which might require dismounting and pushing your bike. The route's overall difficulty means it's best suited for experienced touring cyclists looking for a substantial workout.

This loop offers a unique blend of history and natural wonder, following portions of the original Historic Columbia River Highway, an early 20th-century engineering marvel. You'll encounter restored bridges, tunnels, and masonry walls, providing a tangible connection to the past. The foresight of the highway's designers created gentle grades that make for a more manageable cycling experience, despite the significant elevation gain, and access to local amenities like wineries and breweries near Mosier adds to the appeal.