5 Badlands Paleontological Sites Every Visitor Should See

WATCH LIVE PALEONTOLOGY

This is the only National Park fossil preparation lab with public observation access. Paleontologists and trained interns work here identifying fossil species, carefully removing rock from specimens using specialized tools, and cataloguing new finds from the Badlands' 75-million-year fossil record. The lab drew over 71,000 visitors in 2019, making it one of the park's most popular interpretive facilities.

The lab opened to the public in 2012 after the dramatic discovery of a saber-tooth nimravid skull (Hoplophoneus primaevus), which sparked renewed public interest in the park's paleontological research. Watching active research unfold is unparalleled in the National Park system.

HOW TO VISIT

The Fossil Preparation Lab operates only mid-June through mid-September. It's located inside Ben Reifel Visitor Center, which is open year-round. No reservation is required—walk in and observe at your own pace. The lab is included in your park entrance fee ($30 per vehicle, valid 7 days).

Allow 30–60 minutes for observation. Paleontologists enjoy answering questions, so ask about specific fossils or techniques you're curious about. Bring water and expect the visitor center building to be warm during summer months.

WHY IT MATTERS

The Badlands contains one of the world's richest fossil beds. Work done in this lab contributes directly to our understanding of ancient North American fauna—from Oligocene-epoch mammals to extinct horses, rhinos, camels, and creatures long vanished. By watching active research, visitors gain insight into how paleontologists reconstruct ancient life and ecosystems from fragmentary fossil records.

A MAJOR DISCOVERY

The Big Pig Dig is named after Archaeotherium, a pig-like omnivore that roamed the Badlands 34 million years ago during the Oligocene epoch. Park visitors Steve Gasman and Jim Carney discovered fossils eroding from a gully at Conata Picnic Area in 1997. What started as a casual find turned into a major paleontological project spanning 15 field seasons of excavation, yielding over 19,000 fossil specimens.

Paleontologists believe the fossils represent a death assemblage from an ancient watering hole during a severe drought. The concentration of bones from multiple species provides rare insight into how Badlands megafauna congregated under paleoclimatic stress. This taphonomic evidence—how organisms died and were preserved—is invaluable for understanding ancient ecosystems.

The historical Big Pig Dig discovery was just outside Conata Picnic Area; the excavation was completed, not an active visitor dig. The Badlands Loop Road and its Conata Road junction are in the North Unit, not the South Unit.

FOSSILS YOU'LL FIND

The Big Pig Dig has revealed remains of at least four mammal species. Archaeotherium (the pig-like omnivore) is most abundant, but the site also contains Subhyracodon, a hornless rhinoceros; Mesohippus, an early horse ancestor; and Leptomeryx, a tiny mouse-deer-like mammal. Each species tells part of the story of ancient Badlands fauna and climate.

The Conata Picnic Area pulloff on Badlands Loop Road features interpretive signage explaining the discovery, fossil species, and what taphonomy reveals about ancient death assemblages. The specimens themselves are in museum collections, but the interpretive materials bring the discovery to life.

UNDERSTANDING ANCIENT ECOSYSTEMS

The Big Pig Dig is a window into how paleontologists reconstruct ancient environments. The clustering of diverse species at a single location suggests a shared stress event—likely a drought that drew animals to dwindling water sources. Evidence of scavenging marks on bones adds another layer to the story of ancient life and death in the Badlands.

EXHIBITS & FILMS

Ben Reifel Visitor Center houses the park's most comprehensive paleontology museum, with exhibits spanning 75 million years of Badlands fossil history. From the ancient marine era (when mosasaurs dominated a shallow inland sea) through the Oligocene and Eocene epochs, you'll see audio-visual displays, tactile fossil exhibits, and interactive displays explaining paleontological interpretation.

The 25-minute film 'Land of Stone Light' covers Badlands geology and paleontology, putting ancient and modern landscapes into context. The bookstore stocks paleontology guides, fossil field books, and technical publications—perfect for deepening your understanding.

YEAR-ROUND ACCESS

Unlike staffed seasonal programs, Ben Reifel is open year-round. Peak visitation is May through September, but winter visits offer a quieter experience. The visitor center is located in Interior, South Dakota, at the heart of the North Unit. Park entry is $30 per private vehicle (valid 7 days).

START YOUR PALEONTOLOGY JOURNEY

Ben Reifel is an ideal first stop for any visitor interested in Badlands paleontology. Museum exhibits provide context that helps you understand fossil sites like Big Pig Dig and Fossil Exhibit Trail. The film provides geological framing, and displays introduce the major fauna—horses, rhinos, camels, oreodonts—you'll encounter through ranger programs and trails.

ACCESSIBLE PALEONTOLOGY

Fossil Exhibit Trail is a self-guided accessible boardwalk with fossil replicas. Its outdoor access depends on current trail and weather conditions, not the seasonal staffing of a lab or ranger program. Fossil Exhibit Trail is about five miles from Ben Reifel Visitor Center; drive separately to its trailhead rather than expecting a walk from the visitor center. Fossil Exhibit Trailhead is 5 miles northwest of Ben Reifel Visitor Center.

Unlike most park trails, this one requires no navigation skills and no extensive time commitment—making it ideal for families with young children, elderly visitors, and those with limited time or mobility.

FOSSILS ON DISPLAY

The trail features fossil replicas representing key Badlands megafauna: ancient horses (ancestors of Mesohippus and modern Equus), rhinoceroses (including Subhyracodon), camels, and other mammals. Each replica is labeled with scientific name, common name, and basic biology. The exhibits emphasize how these animals evolved and adapted to changing climates over millions of years.

The boardwalk integrates interpretation into the walk itself, so you experience fossils in the context of the badlands landscape. This reinforces the connection between geology, paleontology, and the modern terrain you see today.

COMBINE WITH OTHER SITES

Fossil Exhibit Trail is about five miles from Ben Reifel Visitor Center; drive separately to its trailhead rather than expecting a walk from the visitor center. Visit Ben Reifel first for context, then drive to the boardwalk. The published Fossil Talk event ran September 08–26, 2026 and has already occurred. It is historical evidence, not a future recurring schedule; check the current NPS calendar for your visit.

WHAT RANGERS TEACH

Ranger-led Fossil Talks explain ancient life in the Badlands when scheduled. The published Fossil Talk event ran September 08–26, 2026 and has already occurred. It is historical evidence, not a future recurring schedule; check the current NPS calendar for your visit.

Programs are informal and encourage questions. Rangers tailor talks to audience interests, discussing different species or concepts depending on visitor curiosity. They're passionate about connecting visitors to the deep time embedded in the badlands landscape.

WHEN & WHERE

The published Fossil Talk event ran September 08–26, 2026 and has already occurred. It is historical evidence, not a future recurring schedule; check the current NPS calendar for your visit. Fossil Exhibit Trail is about five miles from Ben Reifel Visitor Center; drive separately to its trailhead rather than expecting a walk from the visitor center. Current programs: https://www.nps.gov/badl/planyourvisit/calendar.htm

There's no additional fee beyond park entry ($30 per vehicle, valid 7 days). Bring water, sun protection, and prepare for crowd dynamics during summer peak hours.

DEEPEN YOUR UNDERSTANDING

Fossil Talks complement static exhibits at Ben Reifel Visitor Center and self-guided Fossil Exhibit Trail. Live ranger commentary adds narrative depth, explaining why fossils matter to understanding ancient climates, evolution, and extinction. Rangers often connect Badlands fossils to broader paleontological questions and current research, helping you appreciate the research behind every fossil you encounter.