Historic Railroad Trail

Overview

This is the park’s crowd-pleasing rail-to-trail: an easy, mostly level path that traces the old supply line to Hoover Dam. You’ll walk through five photogenic tunnels, soak up wide-open views of Lake Mead and the surrounding desert, and end at the Hoover Dam area if you take the full out-and-back.

What You’ll See

• Five large tunnels cut into volcanic rock, offering intermittent shade and great photo ops.
• Panoramas of the “bathtub ring” and Boulder Basin as the trail contours above the lake.
• Interpretive signs that connect the scenery to the dam’s construction history.
• Occasional desert bighorn sheep—early mornings are your best bet.

Route, Distance & Use

Plan for roughly 3.5–3.7 miles one way (about 7–7.5 miles round trip) from the Lake Mead Visitor Center area to the Hoover Dam side. The tread is compacted dirt/gravel on a mellow railroad grade—great for walking, jogging, and casual biking. Near the dam, bikes are typically not allowed the final stretch; expect to lock up and continue on foot.

Access & Amenities

Most people start by the Lake Mead (Alan Bible) Visitor Center. You’ll find parking, restrooms, potable water, exhibits, benches, and a few picnic spots at or near trailheads. Along the route there are additional toilets and water stations reported, but they are not guaranteed—go self-sufficient.

History Notes

This corridor hauled materials and workers in the 1930s, making Hoover Dam possible. After the tracks came up, the grade lived on as a recreational trail. Near the dam you’ll pass through gates onto Bureau of Reclamation property, and you may spot remnants tied to construction-era operations.

Best Time to Visit

October–April is prime: cooler temps, clearer views, and pleasant tunnel shade. Start early for calm light and fewer people, especially on weekends and holidays. From May–September, avoid midday—there’s little shade and the heat is no joke. Portions beyond Tunnel 5 sit behind gates that lock at night; plan your turnaround to clear the gates well before closing.

Wildlife

Keep an eye on the slopes for desert bighorn sheep, especially around dawn. Enjoy the sightings at a distance and don’t feed wildlife.

Need-to-Know

• A Lake Mead National Recreation Area entrance fee/pass is required.
• The trail is generally open daylight hours; gates near the dam are locked at night and sections can close for repairs or safety. Check current status before you go.
• Dogs are allowed on leash.
• Gravel can feel washboarded in places; narrow road tires and small wheels may feel bumpy.

Is It Worth It?

Absolutely—it's the rare trail that blends big-water views with tangible Hoover Dam history, all on an easy grade. Go early, bring more water than you think you’ll need, and savor the tunnels.