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DTSTART;TZID=America/Denver:20250927T090000
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DTSTAMP:20260605T201933
CREATED:20250713T161025Z
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UID:14176-1758963600-1758978000@westernpaleo.org
SUMMARY:Indian Springs Trace Fossil NNL Site
DESCRIPTION:This 450 million-year-old National Natural Landmark changed paleontology history when it was discovered on a private working ranch by Bennie Thorson just east of Cañon City in the 1960s. Carly Thorson\, his daughter\, provides a guided tour and will decipher and explain the movement of the creatures whose incredibly-preserved fossil footprints were captured in one moment of time when a storm event covered the shallow floor of this Ordovician – Harding Sandstone Formation estuary. Literally stopped in their tracks\, we will learn to spot a resting spot\, feeding trace\, flick of a fin in the sand\, even the impression of bristles on a leg\, a stinger on a tail\, and the tiniest trilobite tracks. \nIndian Springs is considered the best Ordovician trace fossil site in North America and has been a federally protected registered National Natural Landmark since 1979. It is a significant location for paleontology\, geology\, archeology\, botany\, and recent history. It is the type locality for 9 trace fossil genera and species\, and illustrates traces of arthropods (trilobites\, eurypterids\, horseshoe crabs)\, polycheate worms\, and ostracoderm fish – primarily Astraspis desiderata\, a primitive jawless fish which represents the earliest record of cartilage-to-bone in the chain of evolution. \nDuring the walk through pristine juniper woods and then along a 2-track\, Carly will describe the medicinal nature of various plants\, a Civil War site\, a petroglyph\, and geologic features. \nIndian Springs is a private working ranch. No collecting is allowed. Participants must walk in as a group and leave as a group – no early departures except in an emergency. The 1/2 mile walk to the monument is not strenuous\, but there can be cactus\, rattlesnakes\, cows\, barbed wire\, etc. Wear sunscreen\, bring water and snacks/lunch\, and wear hiking boots; no open toed shoes allowed. The tour will depart at 9:30 am sharp. Please arrive by 9:15 am. For safety reasons\, late arrivals will not be allowed to go on the field trip. The field trip will last 2-3 hours. \nAn additional $15 per person for the guided tour will be collected at the site on the day of the field trip. Be certain to bring the exact cash of $15 per person\, as checks and credit cards can’t be accepted. Additional information will be sent out a week prior to the field trip.
URL:https://westernpaleo.org/event/indian-springs-trace-fossil-nnl-site/
LOCATION:Indian Springs\, 3257 County Road 67\, Penrose\, CO\, 81240\, United States
CATEGORIES:Field Trips
ATTACH;FMTTYPE=image/jpeg:https://westernpaleo.org/wp-content/uploads/2025/07/thumbnail.jpg
ORGANIZER;CN="Cindy Smith - Leader":MAILTO:cindysmithrocks@me.com
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