Rockhounding.org

13275'-287', Amerada Petrol. Corp, Herman May, Fryburg Area

Billings County, North Dakota
Directions
Next site in North DakotaMedora · 10 mi

Can I collect here?

Pro
See who owns this land and whether it is claimedPro shows the owner, the claim on this spot and every claim within a mile.
Read the collecting rules by land type

Based on our latest records, with claims updated from the BLM on Oct 3, 2026. Land and claims can change quickly, so check before you go.

Minerals on record here

1 mineral

Recorded here: fossil.

Nearby sites

All of North Dakota
10 miMedoraAgate, chalcedony, silicified wood, concretion11 miUSGS locality 2424, near Medora, ND half mile from Little Misouri, Fort Union FmFossil18 miUSGS locality 6219, west of Little Missouri River, Fort Union FmFossil

More fossil sites in North Dakota

See them all

More sites in North Dakota

View all North Dakota sites
The Market

New on the Market

Native American arrowheadNative American arrowhead$20cubedmoons3Browse the Market

Found something here? List it for sale

About 13275'-287', Amerada Petrol. Corp, Herman May, Fryburg Area

13275'-287', Amerada Petrol. Corp, Herman May, Fryburg Area is a fossil collection site in Billings, North Dakota, cataloged in the Paleobiology Database. Fossils here come from the Deadwood Formation, dated to the Demingian (486.85–483.4 million years ago). The depositional environment is recorded as lagoonal and the tectonic setting is passive margin. Documented finds include Acrotreta, Eocrinoidea, Nanorthis putilla, Syntrophina, Lingulella ibicus, Schizambon.

Geologic setting

Formation
Deadwood
Geologic interval
Demingian
Age
486.85–483.4 Ma
Depositional environment
lagoonal
Tectonic setting
passive margin
Recorded occurrences
6
Geology notes

"sh, ls, and congl. muddy shelf lagoon (BA2) cratonic shelf"

Locality notes

C NW NE sec. 9, T. 139 N., R 100 E.

Fossils found here

Acrotreta
Lingulata · Acrotretidae
Eocrinoidea
Eocrinoidea
Nanorthis putilla
Rhynchonellata · Plectorthidae
Syntrophina
Rhynchonellata · Clarkellidae
Lingulella ibicus
Lingulata · Obolidae
Schizambon
Lingulata · Siphonotretidae

Records and references

Data: Paleobiology Database collection 69030 (CC BY 4.0) — view the source record

Getting there

No directions yet.

How hard is it?

Getting there
– / 5
Finding anything
– / 5
Votes
0

Trip reports

No trip reports yet.

Questions about 13275'-287', Amerada Petrol. Corp, Herman May, Fryburg Area

Can you collect at 13275'-287', Amerada Petrol. Corp, Herman May, Fryburg Area?

It depends on who owns the land and whether a mining claim covers it. BLM land usually allows hand collecting for personal use, national parks allow none, and private land needs the owner’s permission. Pro members see the owner and any claims at this spot.

What minerals are found at 13275'-287', Amerada Petrol. Corp, Herman May, Fryburg Area?

Fossil.

Comments

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

No comments yet.

What to bring

The whole kit
  • Estwing E3-22P Rock PickThe industry-standard 22oz geological hammer. One-piece forged steel with shock-reduction grip.See it on AmazonCompare picks
  • Clear Anti-Fog Safety Glasses (4 Pack)Adjustable, anti-fog lenses for clear vision in any conditions.See it on AmazonCompare picks
  • Watertight Medical KitCompact, waterproof first aid kit with bandages, moleskin, and field essentials.See it on AmazonCompare picks
  • Northwest Treasure Hunter's Gem and Mineral GuideWhether you're digging for the first time or are an experienced rockhound or "prospector," with a simple rock hammer and...See it on Amazon

As an Amazon Associate we earn from qualifying purchases.

Source: Paleobiology Database.