Lost Valley, Abandoned Road and Hamburg Loop Trail

Starting near Saint Charles County, Missouri, the Lost Valley, Abandoned Road, and Hamburg Loop Trail is a captivating 11 km (approximately 6.8 miles) loop with an elevation gain of around 100 meters (328 feet). This trail is rated as medium difficulty, making it suitable for moderately experienced hikers.

### Getting There To reach the trailhead, you can drive or use public transport. If driving, head towards the Weldon Spring Conservation Area, which is the nearest significant landmark. The trailhead is accessible from the Hamburg Trailhead parking lot. For those using public transport, the nearest bus stop is at the intersection of Highway 94 and Highway D, from where you can take a short taxi ride to the trailhead.

### Trail Overview The trail begins with a gentle ascent, offering a mix of shaded woodland paths and open meadows. The initial 2 km (1.2 miles) are relatively easy, with a gradual elevation gain of about 30 meters (98 feet). This section is perfect for warming up and getting accustomed to the terrain.

### Significant Landmarks and Nature As you progress, you'll encounter the remnants of the abandoned road around the 3 km (1.9 miles) mark. This section is particularly fascinating due to its historical significance. The road was once a vital route for early settlers and has since been reclaimed by nature, offering a unique glimpse into the past. Keep an eye out for old road signs and mile markers that have been overtaken by vegetation.

Around the 5 km (3.1 miles) point, you'll reach the Lost Valley, a serene area known for its diverse flora and fauna. This part of the trail is relatively flat, making it an excellent spot for a break. The valley is home to various bird species, deer, and occasionally, wild turkeys. If you're lucky, you might even spot a fox or two.

### Elevation and Terrain The trail then begins a more noticeable ascent, gaining about 50 meters (164 feet) over the next 2 km (1.2 miles). This section can be a bit challenging due to the rocky terrain, so make sure to wear sturdy hiking boots. The path winds through dense forest, providing ample shade and a cool respite during hot summer days.

### Historical Significance At approximately 8 km (5 miles), you'll come across the Hamburg Loop, named after the now-defunct town of Hamburg, Missouri. This area was once a bustling community before being abandoned in the mid-20th century. The loop offers a fascinating look at the remnants of old buildings and infrastructure, making it a must-see for history enthusiasts.

### Final Stretch The last 3 km (1.9 miles) of the trail are a gentle descent back to the trailhead. This section is relatively easy, allowing you to cool down and enjoy the final stretch of your hike. The path meanders through open fields and patches of woodland, offering beautiful views of the surrounding landscape.

### Navigation and Safety For navigation, it's highly recommended to use the HiiKER app, which provides detailed maps and real-time updates. The trail is well-marked, but having a reliable navigation tool can enhance your hiking experience and ensure you stay on track.

### Wildlife and Flora Throughout the hike, you'll encounter a variety of plant species, including oak, hickory, and maple trees. The underbrush is rich with wildflowers, especially in the spring and early summer. Wildlife is abundant, so keep your camera ready for unexpected encounters.

This trail offers a perfect blend of natural beauty, historical intrigue, and moderate physical challenge, making it a rewarding experience for any hiker.