The Iron Horse Regional Trail is a 32-mile multi-use path that stretches from Concord to Pleasanton, following the historic Southern Pacific Railroad right-of-way that was established in 1891 and abandoned in 1978. The trail took nearly 30 years of planning and community effort to complete, with the final segment opening in August 2014—a crucial link from the Pleasanton/Dublin BART station to Santa Rita Road that made the entire route more accessible.

Dogs on leash are welcome along the entire length of the trail, which makes it genuinely convenient for a range of outings. You can do a quick neighborhood walk or tackle a longer day hike depending on your energy level and your dog’s fitness. What you’ll actually see varies as you go—some stretches run through shaded areas, others open up to views of surrounding hills and fields, so the scenery stays interesting over the distance.

The trail connects neighborhoods, parks, schools, and public transit options, so you can access it from multiple points depending on where you’re coming from. If you’re starting from the Pleasanton area, you’ve got easy BART access. From Alamo or surrounding communities, you can pick up different entry points along the route. The trail itself is well-maintained and straightforward to navigate.

Bring water for both you and your dog—there aren’t consistent water sources along the full length, and staying hydrated matters when you’re out for any real distance. Pack waste bags to keep things clean for other users. If you want to make a full day of it, several nearby parks and rest stops along the route work well for picnic breaks. The surrounding open fields give dogs plenty to look at even while they’re on leash, and you’ll likely see other dogs and people out enjoying the same trail, so it has a genuine community feel to it.