The Fossil Cabin at Como Bluff
The Fossil Cabin at Como Bluff

Fun Fact: The Official State dinosaur is the triceratops 

Carbon County, Wyoming has its own collection of places to vist for paleontologists and paleo-enthusiests.

The World’s Oldest Building: The Fossil Cabin at Como Bluff

The fossil cabins is located on US Route 30/287 around 5 miles east of Medicine Bow in Carbon County, Wyoming. The cabin was built alongside the Lincoln Highway in 1932 by Thomas Boylan using dinosaur bones he collected from nearby Como Bluff.

The cabin is supposed to contain around 5,800 dino bones and has been called the "world's Oldest Building". It is listed in the National Register of Historic Places for being unique and for being directly related to the nation’s first transcontinental highway.

 The Fossil Cabin at Como Bluff is on privately held land.

 Learn more about the Fossil Cabin


Como Bluff

Como Bluff is the place where the fossils from the Fossil Cabin came from. This ridge of the Morrison Formation is where some of the best preserved dinosaur bones have been found. Dinosaurs roamed the earch for 165 million years and may large terrestrial species inhabited current day Wyoming. Experts say it is a matter of time, place, and climate that prompted dinosaurs to live here. Como Bluff became famous for the start of the "bone rush" by fossil collectors.

Dinosaur hunting became the rave in the scientific world, and Como Bluff was at the center of such discoveries and the road to scientific fame. There were large numbers of dinosaur bones found in the Morrison Formation at Como Bluff and most were considered exceptionally preserved. Individual dinosaur bones had been found in England, western Europe, and eastern United States, but not like what was found at Como Bluff. Here complete or nearly complete skeletons were being discovered. 

You can see Como Bluff from Hwy 30 about 5 miles east of Medicine Bow, Wyoming. Como Bluff is about 10 miles long and 1 mile wide.

The Fossil Cabin at Como Bluff

Four types of sauropods were found at Como Bluff. These included the plant-eating Apatosaurus (the correct name for Brontosaurus), Diplodocus, at 90 feet long, Camarasaurus, and Barosaurus. Other large herbivores that inhabited the area during the late Jurassic period included the Stegosaurus (known for its heavy armor), and Camptosaurus, Laosaurus, and Dryosaurus. Carnivores included the Allosaurus, Ceratosaurus, and Ornitholestes.

Dinosaur bones collected from the Morrison Formation of southern Wyoming can be viewed at the University of Wyoming Geological Museum in Laramie.

Popular Stories

Carbon County Recreation & Trail Maps

Carbon County Recreation & Trail Maps

Weekend Escape to Saratoga, Wyoming

Weekend Escape to Saratoga, Wyoming

Exploring the Carbon County Museum

Exploring the Carbon County Museum

Carbon County Summer 2023 Photo Contest Winners Announced!

Carbon County Summer 2023 Photo Contest Winners Announced!