Big Fill Loop Trail

The trail is located within the Golden Spike National Historical Park. Parking is available at the park's visitor center, which serves as the primary access point for the trail. From there, you can easily reach the trailhead.

Yes, this trail is considered easy and very family-friendly. It's a relatively short loop with minimal elevation change, making it accessible for most fitness levels, including those new to hiking.

You'll be walking on the original railroad grades of both the Central Pacific and Union Pacific railroads. These are essentially sloped earthen beds where tracks once lay. While generally easy, be mindful of uneven surfaces. The trail is fully exposed to the sun with no shade.

Spring and fall are ideal for hiking the Big Fill Loop Trail due to more moderate temperatures. In spring, you might even catch wildflowers. Summers can be extremely hot, often reaching into the 90s or even over 100 degrees Fahrenheit, with no shade. Winter hiking is possible, but be prepared for cold conditions and check for snow or ice.

Yes, dogs are permitted on the Big Fill Loop Trail within the Golden Spike National Historical Park. However, they must be kept on a leash at all times. Please remember to clean up after your pet.

There is currently no entrance fee to visit the Golden Spike National Historical Park or to hike the Big Fill Loop Trail. You do not need a permit for day hiking on this trail.

The trail is rich in history! You'll walk on original railroad grades and see engineering marvels like the Central Pacific's "Big Fill" embankment and the abutments for the Union Pacific's "Big Trestle." Look for cuts through hills, fills, and even drill marks left by workers. Informative signs or a pamphlet from the visitor's center can guide you through the intense competition between the railroad companies.

Given the trail's full sun exposure and potential for high temperatures, especially in summer, bringing plenty of water is essential. Sunscreen, a hat, and comfortable walking shoes are also highly recommended. A camera might be nice for capturing the historical sites and distant mountain views.

Yes, the route also passes through sections of the Big Fill Loop Path, Big Fill, Big Fill, and Big Fill trails, offering a comprehensive experience of the historic railroad grades.

Public transportation options directly to the Golden Spike National Historical Park are very limited. The park is best accessed by private vehicle. Check the official nps.gov website for the most current visitor information and directions.

The Golden Spike National Historical Park itself has a visitor center with restrooms. For amenities like food, gas, and accommodations, you would need to travel to nearby towns, as there are no services directly adjacent to the park. Plan accordingly for your visit.