Best States for Fossil Hunting: Where to Go

Florida and Ohio are the most accessible states for recreational fossil collectors, offering productive public sites with no permit required and high odds of keeping genuine specimens. For dinosaur material, Montana, Wyoming, and Utah lead the country. For marine invertebrates spanning hundreds of millions of years, the Midwest and Great Plains hold some of the most productive free public sites in the world.

The right state depends on what you want to find and how much planning you're prepared to do.

Florida: shark teeth and Miocene vertebrates

Florida's geology is almost entirely Miocene to Quaternary marine and freshwater sediment — no bedrock is exposed at the surface. That makes it unusual among US fossil states in that most collecting happens on beaches, rivers, and phosphate-bearing creek banks rather than in cliffs or quarries.

Venice Beach on the Gulf Coast produces shark teeth year-round. Carcharocles megalodon, Carcharhinus species, and Hemipristis are all documented at the site. Peace River in Hardee and DeSoto Counties is a river-wading site where collectors work gravel bars by hand and sieve; the Bone Valley phosphate formation underlying the river channel has produced megalodon, mastodon, horse, rhinoceros, and giant ground sloth material. No permit is required for surface and shallow-river collecting at either location.

Ohio: Ordovician invertebrates on free public access

Ohio's Ordovician limestone and shale sequence, roughly 450 million years old, is one of the most productive and accessible fossil formations in North America. Caesar Creek State Park, managed by the US Army Corps of Engineers, has a designated fossil collecting area on the spillway below the dam where trilobites, brachiopods, crinoids, bryozoans, and corals erode out continuously. Access is free. No permit is required.

Trammel Fossil Park in Sylvania, a suburb of Toledo, is a free city park specifically designated for fossil collecting. East Fork State Park near Cincinnati operates similarly. The sheer density of productive, free, public-access sites makes Ohio the most beginner-friendly state in the US for fossil collecting.

Montana and Wyoming: dinosaurs and Cretaceous marine

The Hell Creek Formation in eastern Montana and the Dakotas contains some of the most complete dinosaur material in the world. Most of this land is private ranch land; access for recreational collectors requires landowner permission or a booking at a commercial dig operation. Carter County, Montana has several operations that run public dig programs.

Wyoming's Morrison Formation (Jurassic) and Cretaceous marine exposures in the central part of the state offer a different cross-section. The Green River Formation near Kemmerer, Wyoming, is Eocene freshwater lake sediment that produces complete fish. Several pay-to-dig operations at quarries allow collectors to keep their finds, including complete Knightia and Diplomystus specimens.

Utah: Cambrian trilobites and Jurassic dinosaurs

U-Dig Fossils near Delta, Utah operates a commercial Cambrian trilobite quarry where visitors pay a fee and keep what they find. The Wheeler Formation exposed at the quarry produces Elrathia kingii in high densities — a reliable, accessible Cambrian experience with no permit required beyond the site fee.

The Morrison Formation, which contains Jurassic dinosaurs, crops out across much of eastern Utah. Dinosaur National Monument at the Utah-Colorado border has an exposed quarry face with thousands of bones visible in situ, though no collecting is allowed in the monument. Adjacent BLM land may allow casual collection of non-vertebrate material.

Kansas and Maryland: marine sites with clear access

The Niobrara Chalk of western Kansas, deposited in the Cretaceous Western Interior Seaway, produces mosasaur bones, shark teeth, and fish in private farmland and some public exposures. Access typically requires landowner permission or booking with a guide.

Calvert Cliffs State Park in Maryland has designated fossil collecting beaches on the Chesapeake Bay where Miocene shark teeth, rays, and marine mammal fragments erode from the cliff base. The Calvert Formation here is roughly 10–15 million years old. Access is free, the walk is manageable, and finds are frequent — one of the most visitor-friendly sites on the East Coast.

Where to go next

Detailed site-by-site guides for Florida, Ohio, and California are on GFH. The Florida fossil hunting guide covers Venice Beach, Peace River, and Bone Valley. The Ohio guide covers Caesar Creek, Trammel Fossil Park, and several other free public sites. The California guide covers La Brea, Shark Tooth Hill, and more.