Type
Historic Quarry / Education Center
Age
Late Triassic, ~215–205 mya
Established
Quarry discovered 1947
Best time
Spring (April–May) and fall (September–October) for comfortable hiking and museum visits
- ◆Hundreds of Coelophysis skeletons in one bonebed
- ◆One of the best windows into Triassic dinosaur life
- ◆Blocks distributed to museums worldwide
- ◆Also famous as Georgia O'Keeffe's landscape
Photos
Overview
Ghost Ranch is famous twice over — as the New Mexico landscape painted by Georgia O'Keeffe, and as the site of the Coelophysis quarry, one of the most remarkable dinosaur discoveries of the 20th century. In 1947, a crew from the American Museum of Natural History found a bonebed packed with hundreds of skeletons of Coelophysis, a slender, fast Late Triassic predator near the dawn of the dinosaur lineage.
Geology
The bones occur in the Chinle Formation, a sequence of Triassic river and floodplain deposits famous for its colorful badlands. The Coelophysis individuals appear to have been killed and buried together — possibly by a flash flood or drought-driven die-off around a shrinking water source — producing an extraordinary concentration of articulated skeletons.
What You See
Ghost Ranch operates as an education and retreat center with two small museums, including the Ruth Hall Museum of Paleontology, where you can see Coelophysis blocks and learn about the quarry. The surrounding red-and-yellow cliffs are spectacular and hikeable.
Famous Finds
Coelophysis bauri from Ghost Ranch became one of the best-understood early dinosaurs, known from juveniles to adults. Quarry blocks were distributed to museums around the world, and Coelophysis was later named the state fossil of New Mexico.
Visiting
The ranch welcomes day visitors and offers tours, hiking, and the on-site museums. Check seasonal hours and tour schedules in advance, and respect that it is also a working retreat center.
Best time to visit
Spring (April–May) and fall (September–October) for comfortable hiking and museum visits. Summer is hot; winter can bring snow on the mesa roads.
Getting there
60 miles north of Santa Fe via US-84 to Abiquiú, then follow signs to Ghost Ranch. The final approach is a scenic but winding road through red-rock country.
Map
Abiquiú, New Mexico — approximate location only. Exact fossil localities are not published to protect sites from looting.
Market & Provenance
Coelophysis specimens from Ghost Ranch belong in museums. Triassic material on the commercial market is rare; any claimed Ghost Ranch provenance warrants expert verification.
Collecting & Legality
Collecting is not permitted on the property. The quarry is a protected scientific site. Any Coelophysis or Chinle material on the market should be scrutinized carefully for legal provenance.
FAQ
Can I visit without staying overnight?
Yes — day visits, museum access, and some tours are open to the public. Check ghostranch.org for schedules.
Is this the Georgia O'Keeffe place?
Yes — she lived and painted here. The landscape and the quarry are both part of its fame.
Can I dig for Coelophysis?
No — the quarry is a protected scientific site on private foundation land.