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[]: 9
[Name]: Red Rock Lakes National Wildlife Refuge
[Image]:
[Date]: 1966
[Location]: 44°37′49″N 111°46′53″W / 44.630278°N 111.781389°W / 44.630278; -111.781389 (Red Rock Lakes National Wildlife Refuge)
[County]: Beaverhead
[Ownership]: federal
[Description]: A series of relatively undisturbed, high-altitude ecosystem types representative of pre-European settlement conditions. -
[]: 6
[Name]: Hell Creek Fossil Area
[Image]:
[Date]: 1966
[Location]: 46°09′N 107°29′W / 46.15°N 107.48°W / 46.15; -107.48 (Hell Creek Fossil Area)
[County]: Several
[Ownership]: mixed- state, private
[Description]: The type locality for Tyrannosaurus rex, Ankylosaurus magniventris, and Brachychampsa fontana fossils. -
[]: 1
[Name]: Bridger Fossil Area
[Image]:
[Date]: 1973
[Location]:
[County]: Carbon
[Ownership]: federal (Bureau of Land Management)
[Description]: Contains fossils of Deinonychus antirrhopus. -
[]: 2
[Name]: Bug Creek Fossil Area
[Image]:
[Date]: 1966
[Location]: 47°40′59″N 106°13′09″W / 47.68299°N 106.219193°W / 47.68299; -106.219193 (Bug Creek Fossil Area)
[County]: McCone
[Ownership]: federal (Charles M. Russell National Wildlife Refuge)
[Description]: Produced abundant remains of small, Cretaceous mammals. -
[]: 8
[Name]: Middle Fork Canyon
[Image]:
[Date]: 1977
[Location]: 46°07′54″N 111°06′35″W / 46.131701°N 111.109849°W / 46.131701; -111.109849 (Middle Fork Canyon)
[County]: Gallatin
[Ownership]: federal (Bureau of Land Management)
[Description]: An outstanding example of a canyon cut across the grain of the geologic structure by a superposed stream. -
[]: 4
[Name]: Cloverly Formation Site
[Image]:
[Date]: 1973
[Location]:
[County]: Big Horn
[Ownership]: tribal land (Crow Nation)
[Description]: Contains early Cretaceous vertebrate fossils.
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