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Jump Off (ANSP)

Harding County, South Dakota
Directions
Next site in South DakotaCamp Crook · 9 mi

Can I collect here?

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See who owns this land and whether it is claimedPro shows the owner, the claim on this spot and every claim within a mile.
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Based on our latest records, with claims updated from the BLM on Oct 9, 2026. Land and claims can change quickly, so check before you go.

Minerals on record here

1 mineral

Recorded here: fossil.

9 miCamp CrookMoss Agate, chalcedony10 miKJ0228 (DMNH 2703)Fossil10 miBuffalo, southwestFossil

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About Jump Off (ANSP)

Jump Off (ANSP) is a fossil collection site in Harding, South Dakota, cataloged in the Paleobiology Database. Fossils here come from the Hell Creek Formation, dated to the Maastrichtian (72.2–66 million years ago). The depositional environment is recorded as terrestrial indet. Documented finds include Torosaurus latus.

Geologic setting

Formation
Hell Creek
Geologic interval
Maastrichtian
Age
72.2–66 Ma
Depositional environment
terrestrial indet.
Altitude
951 meters
Recorded occurrences
1
Locality notes

10 mi E of Camp Crook, area known as the "Jump Off"

Fossils found here

Torosaurus latus
Ornithischia · Ceratopsidae

Records and references

Data: Paleobiology Database collection 53128 (CC BY 4.0) — view the source record

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Questions about Jump Off (ANSP)

Can you collect at Jump Off (ANSP)?

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 Jump Off (ANSP)?

Fossil.

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Meteorite nearbyA 3.1 kg stony meteorite was found at Harding County in 1941, 17 miles from here.

Source: Paleobiology Database.