St. Vrain Greenway and Lagerman Preserve Loop

This touring cycling route is approximately 27 km (16.8 miles) long. Most cyclists can expect to complete it in about 1 hour and 40 minutes, depending on their pace and how often they stop to enjoy the scenery.

The route offers a varied terrain. The Saint Vrain Greenway sections are primarily smooth, paved surfaces, ideal for road bikes. Within the Lagerman Agricultural Preserve, you'll encounter well-graded crushed gravel and dirt roads. This mix means it's best suited for touring bikes capable of handling both paved and unpaved surfaces. The route is largely flat with minimal elevation gain, though some short, slight inclines may be present.

Yes, this loop is generally considered easy to moderate, making it suitable for most skill levels, including beginners and families. The St. Vrain Greenway sections are particularly flat and well-maintained, offering a comfortable ride. While the Lagerman Preserve adds some gravel sections and slight elevation changes, it remains accessible for those with good basic fitness.

There are numerous access points with available parking along the St. Vrain Greenway. For the Lagerman Preserve, you can find parking at designated trailheads. These areas are well-connected, making it easy to start your ride from various locations in Longmont.

You'll experience diverse scenery, from river views along the St. Vrain Creek to green meadows, parks, and ponds. The Lagerman Agricultural Preserve offers expansive views of active farmland, open fields, and the foothills of the Rockies. Keep an eye out for wildlife, including bald eagles, wood ducks, great blue herons, and various bird species around Lagerman Reservoir, which is known for a seasonal osprey nest.

Yes, both the St. Vrain Greenway and trails within the Lagerman Agricultural Preserve are generally dog-friendly. However, dogs must be kept on a leash at all times to protect wildlife and ensure the safety of all trail users. Please remember to clean up after your pet.

The route is enjoyable for cycling throughout much of the year. Spring and fall offer pleasant temperatures and beautiful foliage. Summer is also great, though you might want to start earlier to avoid the midday heat. Winter cycling is possible, but be aware of potential icy patches or snow on some sections, especially on unpaved paths.

Generally, there are no entrance fees or permits required for public access to the Lagerman Agricultural Preserve for recreational activities like cycling. However, it's always a good idea to check the Boulder County Parks & Open Space website for any updated regulations or specific activity permits, especially for larger groups or special events.

Yes, the St. Vrain Greenway is a central part of Longmont's trail system and offers excellent connectivity. It links to other significant paths like the Left Hand Greenway and can connect to the Longmont-to-Boulder Regional Trail (LOBO Trail), allowing for longer and more extensive touring loops. The route also passes through sections of the Longmont Loop - South, Lykins Gulch / Supply Ditch Trail, and Dry Creek Trail.

Yes, particularly along the St. Vrain Greenway, you'll find many stopping places. The trail passes through urban areas of Longmont, providing access to restaurants, breweries, and picnic areas, so you don't necessarily need to pack a full lunch for your ride.

Key highlights along the route include the scenic Saint Vrain Greenway itself, the tranquil Golden Ponds, and the expansive Lagerman Agricultural Preserve. You'll also pass by historical sites like the Sandstone Ranch Park and enjoy spectacular mountain views, especially towards the western end of the trail.