There's no visitor center at the corner of North Durango Drive and West Moccasin Road. There's a kiosk and a gravel lot. Past them, tan badlands drop into the Upper Las Vegas Wash, with the Spring Mountains to the west and the Sheep and Las Vegas Ranges to the north. This is the Durango side of Tule Springs Fossil Beds National Monument. The National Park Service lists no street address for it. The monument is open sunrise to sunset and has no water refill, shade structures or restrooms.
The walls along the trail are soft Ice Age sediment, and water keeps cutting into them. That same erosion is what brings fossils to the surface. The park built its main Durango trail around this process, and it asks hikers to help document it. Next Saturday, the monument's yearly fossil day comes back to this same parking lot.
Two loops from one trailhead
The Park Service rates the Durango Loop easy to moderate, with two options from the same start.
| Short loop | Long loop | |
|---|---|---|
| Distance | 1.7 miles | 2.25 miles |
| Typical time | 30 to 40 minutes | 60 to 90 minutes |
| Elevation change | 87 feet | 87 feet |
| Surface | Loose gravel, compacted desert soil | Loose gravel, compacted desert soil |
The rules suit a weekday walk. Dogs are allowed on marked trails if they're leashed. Owners pick up waste and keep dogs away from steep, unstable slopes. Bicycles and Class 1 e-bikes can use existing roads, trails and parking areas. Cyclists yield to hikers and horses, and hikers yield to horses. Horses and pack animals stay on existing roads, trails and washes. The monument's laws and policies page lists collecting as an activity that needs a permit under the Paleontological Resources Preservation Act. The park's approach is to leave fossils where they're found.
Four stops that tell one story about water
Along the loop are four QR codes, and each opens a short Park Service write-up. Read in order, they make a single argument:
- Stop 1, the springs. Snowmelt and rain on the surrounding ranges soak down into aquifers. Water then rises along faults and forms marshes, pools, streams and wet meadows. Wetlands grew and shrank here from about 570,000 to 10,600 years ago.
- Stop 2, the dust. Windblown silt settled into those wetlands layer by layer, much like dust building up on a shelf. The Park Service notes that flash floods from winter rains and summer monsoons can cut through those layers fast. The bigger rocks along the trail in the wash were carried down from the mountains by fast-moving floodwater.
- Stop 3, the undercut wall. The wash next to the trail is badly undercut, and big blocks of badland can break off without warning.
- Stop 4, the burial. Spring-fed streams buried bones faster than still marshes did, so some ancient wetland types kept fossils better than others. Today, erosion uncovers some of those fossils so park paleontologists can study and protect them.
The fourth stop also sets expectations honestly. The Park Service tells hikers who haven't spotted a fossil not to worry, because "there may be hundreds of fossils still buried underneath your feet." The same text says Columbian mammoth tusks found under Tule Springs have measured up to 11 feet long.
Put together, the stops explain the trail. Water built these deposits and buried the animals, and water is now taking the deposits apart. The Durango Loop self-guided tour gives this advice at Stop 3:
"The safest place to hike the Durango Loop is away from the edge of the wash walls."
The station that turns a walk into a data point
At Stop 3, on the short loop, there's a Chronolog time-lapse station. The Park Service asks visitors to photograph the eroding wall from a fixed spot and email the picture to [email protected] with the subject line "TSF-102." Photos from many visitors get combined into a time-lapse of slumping and erosion over months and seasons. The park uses it to judge how quickly the geology is wearing away and to adjust how it protects features and fossil sites across the monument. Each contributor gets an email back with a link to the time-lapse.
This week gives that photo some extra value. On October 11, 2026, the monument's alerts page posted that Corn Creek Road was closed by flooding from Tropical Storm Rachel. That closed the Desert National Wildlife Refuge and the Corn Creek Visitor Center until further notice. The Park Service says flash floods are what carve these wash walls. A photo taken at the station after a storm adds a before-and-after frame to the park's record. Check the alerts page before you head out, and stay off any wash, road or trail that's still holding water, as the alert directs.
The dig that settled a question
People have been studying this spot for a long time. The Tule Springs Expedition of 1962 and 1963, later called the "Big Dig," tested whether humans lived alongside Ice Age megafauna in this valley. Radiocarbon dating showed human artifacts and fossils sitting in separate layers, and that disproved the idea at this site.
According to the Las Vegas Review-Journal, the dig ran from October 1962 to January 1963. Crews moved about 200,000 tons of soil and cut trenches as deep as 30 feet. Along with mammoth, bison and horse remains, they found human-made objects, including a stone scraper.
The animals behind those layers include Columbian mammoth, ancient camel, bison, several kinds of horse, Jefferson's and Shasta ground sloths, American lion, dire wolf and saber-toothed cat. Mammoths are the most common fossils in the Tule Springs collection. The mammoth isn't Nevada's state fossil, though. The Park Service's state-fossil list names the ichthyosaur Shonisaurus popularis.
The Big Dig moved about 200,000 tons of soil to reach these layers. Today, a hiker with a phone at Stop 3 is watching the same deposits being exposed a little at a time by rain.
Saturday, October 17: Pleistocene Palooza returns
The monument's free yearly fossil day, Pleistocene Palooza, is set for Saturday, October 17, 2026, starting at 9:30 a.m. and running three hours. It's held in the parking area at North Durango Drive and West Moccasin Road. Visitor parking is on the northeast side of the intersection. The Park Service event listing promises:
- Meet real scientists
- Junior Paleontologist Program
- Get up close with fossils
- Live animals
- Fun for all ages
- Dog friendly
The listing says the fossils here are between 100,000 and 12,500 years old. Last year's Park Service listing for an October 4, 2025 Palooza was marked "postponed" and gave no new date. The 2024 event was held at this same intersection on October 5. The Protectors of Tule Springs event page shows a longer time window, so go by the Park Service's three-hour listing.
The extended forecast posted on the monument's conditions page on October 11 called for sun and a high near 78 that Saturday. There's no water at the site, so bring your own.
What gets built next, on the other side of the monument
The Durango side will keep its gravel loop for now. The monument's first permanent accessible trails are going in on the North Las Vegas side. Construction started August 22, 2025, on the 3.3-mile Tufa Trail, which is expected to open to the public in 2027. It will have bilingual wayside exhibits, tactile models and wayfinding maps. The Park Service release says design and construction are funded entirely in-kind by D.R. Horton under a 2018 land exchange between the Park Service and the City of North Las Vegas. The Protectors of Tule Springs won more than $70,000 from the Federal Highway Administration's Recreational Trails Program for the project.
While construction goes on, the South Unit is closed to visitors south of Grand Teton Drive, between Tule Springs Parkway and North Fifth Street. The Park Service says trailheads stay open. Its groundbreaking release also says the closure doesn't affect the existing Durango and Aliante loops.
If one Saturday morning gets you hooked, the Protectors of Tule Springs, the monument's official philanthropic partner, runs spring and fall interpretive hikes for ages 10 and up. Spots are often limited, and you register through the group's calendar. Volunteers help with cleanups, event outreach, trail building and administrative work.
After the dig
Lunch after the Palooza can stay on the same Cold War theme. Able Baker Brewing's Bomb Shelter taproom opened in Centennial Hills at 6371 Centennial Center Blvd., in the former Montana Meat Company space. Las Vegas Weekly reported in July that the space shows artifacts on loan from the National Atomic Testing Museum, has 26 taps and several patios with ping pong and cornhole, and has a family dining side separate from the bar. Hours are 11 a.m. to 11 p.m. Sunday through Thursday and until midnight Friday and Saturday.
The fossils turn up again later in the month. On Friday, October 30, Tule Springs will display fossils at Nevada Day at the Nevada State Museum, Las Vegas, at the Springs Preserve, from 9 a.m. to 4 p.m. Admission is free for Nevada residents. Closer to home, the City of Las Vegas lists the free Ward 6 Haunted Harvest for Thursday, October 29, from 4 to 7:30 p.m., at the Centennial Hills Community Center/YMCA at 6601 N. Buffalo Drive and the Centennial Hills Library at 6711 N. Buffalo Drive.
I grew up in this valley, and the fossil beds are one of the details I like sharing with people settling into the northwest, along with which trailhead is closest to home. If you'd like to talk through life near Durango and Moccasin, or anywhere else in Northwest Las Vegas, Baylee N Collins is glad to help. Let's Connect.
This article is general information, not legal, tax or financial advice. Consult a qualified professional about your situation.
