Cretaceous Time

Cretaceous Time (HM2CMF)

Location: Morrison, CO 80465 Jefferson County
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Country: United States of America
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N 39° 40.566', W 105° 11.639'

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Inscription
The tan sandstone of the Dakota Group form the crest of Dinosaur Ridge and were deposited
more than 100 million years ago during Cretaceous time along the western shore of the Western
Interior Seaway. At that time, only low hills existed to the west because the present Rocky Mountains had not yet been formed. At its fullest extent, the Seaway extended from the Gulf of Mexico to Canada. Sediments characteristic of beaches, swamps, and coastal plain wetlands were deposited on the shores of the Seaway as it grew and receded. The plants and animal whose traces and tracks are preserved in the rocks today lived in those ancient nearshore and intertidal environments.
Details
HM NumberHM2CMF
Tags
Placed ByFriends of Dinosaur Ridge
Marker ConditionNo reports yet
Date Added Tuesday, October 23rd, 2018 at 8:04pm PDT -07:00
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Locationbig map
UTM (WGS84 Datum)13S E 483363 N 4391826
Decimal Degrees39.67610000, -105.19398333
Degrees and Decimal MinutesN 39° 40.566', W 105° 11.639'
Degrees, Minutes and Seconds39° 40' 33.96" N, 105° 11' 38.34" W
Driving DirectionsGoogle Maps
Area Code(s)303, 720
Closest Postal AddressAt or near 2244 Co Rd 93, Morrison CO 80465, US
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

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