Old Railroad Grade Fire Road

The Old Railroad Grade Fire Road is primarily a wide fire road, following the historical route of the "Crookedest Railroad in the World." While generally smooth, some sections can be rocky. It features a steady and relatively gentle incline, typically around a 6% to 8.2% grade, as it ascends Mount Tamalpais.

The Old Railroad Grade Fire Road is generally considered an intermediate trail for hiking due to its sustained uphill climb. However, its consistent, gentle grade (around 4-7% to the West Point Inn) makes it one of the "easiest" ways to gain significant elevation on Mount Tamalpais. Beginners comfortable with a steady ascent can enjoy sections of it.

The trail offers spectacular views of the Pacific Ocean, Golden Gate Bridge, San Francisco Bay, and the Marin Headlands. You'll pass historical points like the Former Railroad and Gravity Car Station and the historic West Point Inn. Other highlights include the View of Richardson Bay from Old Railroad Grade and the Railroad Grade Fire Road Overlook to San Francisco.

Parking is available at various points along the base of Mount Tamalpais, including the Mountain Home Inn area or near the Blithedale Canyon entrance in Mill Valley. Arriving early, especially on weekends, is recommended due to the trail's popularity.

Yes, the trail is dog-friendly. Leashed dogs are permitted on the Old Railroad Grade Fire Road, making it a great option for hiking with your canine companion.

The trail can be enjoyed year-round. Spring brings wildflowers and lush greenery, while fall offers clear views and pleasant temperatures. Summer mornings are often cool, but it can get warm later in the day. Winter can be beautiful, but check weather conditions for rain or fog.

No, there are generally no permits or entrance fees required to hike the Old Railroad Grade Fire Road or other trails within the Mount Tamalpais Watershed. However, always check the latest regulations from the Marin Municipal Water District (MMWD) or Mount Tamalpais State Park for any updates.

Yes, the route intersects with several other trails. Notably, sections of the Vic Haun Trail, Hoo-Koo-E-Koo Trail, Miller Trail, Fern Creek Trail, and Nora Trail are accessible from or run alongside the Old Railroad Grade Fire Road, offering options for extended or alternative routes.

The historic West Point Inn, a popular resting point along the route, offers access to water. It's always advisable to carry sufficient water for your hike, especially on warmer days, as other water sources may not be consistently available.

Given the trail's length and elevation gain, bring plenty of water, snacks, and sun protection (hat, sunscreen). Layers of clothing are recommended as temperatures can change, especially with elevation. Sturdy hiking shoes are also a must for the varied terrain.

The trail itself is built on the bed of the historic Mt. Tamalpais Scenic Railway, famously known as the "Crookedest Railroad in the World." You can still see remnants of its past, including the Former Railroad and Gravity Car Station and the unique engineering marvel known as the Double Bowknot, where the railway curved to parallel itself multiple times to gain elevation.