Colfax to Old Bear River Bridge loop

The loop is generally considered moderate for touring cyclists. The primary route is about 11.2 km (7 miles) with an elevation gain of 220 meters (722 feet). However, there are longer, more challenging variations, such as a 48.8 km (30 miles) option with 1,039 meters (3,409 feet) of elevation gain, which includes steep segments and requires good fitness.

The route is mostly paved, making it suitable for touring bicycles. While generally smooth, be prepared for significant elevation changes, especially on longer variations. Some sections, like Iowa Hill Road, are narrow with steep grades.

The loop is rich in history. You'll pass by the Colfax Cemetery, the historic Old Bear River Bridge (also known as Iowa Hill Bridge), and sites related to the First Transcontinental Railroad Colfax. The Old Bear River Bridge itself is a notable landmark with its unique 1924 Roman-style arch design.

The spring months, particularly April and May, are ideal for cycling this route. During this time, you can enjoy pleasant weather and witness abundant wildflowers in bloom. The area's oak woodlands and natural foliage are also vibrant.

Specific parking information for the exact trailhead is not detailed, but Colfax serves as a good starting point. Look for public parking options within Colfax, California, to begin your ride. The Bear River Campground area may also offer access points.

The shorter, 11.2 km (7 miles) version of the loop is considered moderate and can be suitable for various fitness levels, including families with some cycling experience. However, the longer variations with significant elevation gains are more challenging and better suited for experienced cyclists.

The primary cycling route itself is on paved roads, which generally means dogs are allowed if leashed. However, if you plan to venture onto adjacent multi-use trails, such as those near the Bear River Campground, always check local regulations regarding dogs and leash requirements for those specific paths.

No specific permits or entrance fees are mentioned for cycling the Colfax to Old Bear River Bridge loop, as it primarily uses public roads. However, if you access facilities like the Bear River Campground, standard day-use or camping fees may apply.

You can expect picturesque views of the Bear River, surrounding canyons, and diverse natural foliage including oak woodlands, manzanita, and laurel. Keep an eye out for wildflowers, especially in spring. The area's deep historical significance also adds to the unique scenery.

Yes, the region around Colfax offers access to various other trails. For hikers, the Stevens Trail is very accessible off Interstate 80. The Bear River Campground also provides multi-use trails that could be explored, offering more options for both cycling and hiking.

Colfax, California, is a town with amenities. You should be able to find cafes, restaurants, and possibly pubs within Colfax itself, which is a convenient starting and ending point for the loop. It's advisable to check specific opening hours before your ride.