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Pit 11 is now Braidwood State Fish and Wildlife Area, an Illinois state park. Fossil collecting is allowed at the park with a permit. [8] The site's importance was realized in the mid-nineteenth century: "the nodules of Mazon Creek, where fragments of plants, even of the softest texture, have been preserved in their integrity". [9]
Prehistoric sites in Colorado. McElmo Drainage Unit. Sites include: Cramer, Canterbury, Snake Blakeslee, Juan Baca, Munsell. Not listed on the State Register site. Bellwood type site, Graneros phase, Arkansas River basin. The state register reports occupancy from 3000 BC - AD 1540.
The Mazon River or Mazon Creek ( / məˈzɒn / ), is a tributary of the Illinois River in the United States. The confluence is near Morris, Illinois. [ 2] The Mazon River is associated with the Mazon Creek fossils of the Francis Creek Shale, which are also exposed in strip mines and quarries near the River. This fossil bed includes well ...
The Florissant Formation is a sedimentary geologic formation outcropping around Florissant, Teller County, Colorado. The formation is noted for the abundant and exceptionally preserved insect and plant fossils that are found in the mudstones and shales. Based on argon radiometric dating, the formation is Eocene (approximately 34 million years ...
Indian Springs Trace Fossil Natural Area. Location. Fremont County, Colorado, USA. U.S. National Natural Landmark. Designated. 1980. Indian Springs Trace Fossil Natural Area is a 40-acre [nb 1] privately owned site on the Indian Springs Ranch in Fremont County, Colorado. It was designated a National Natural Landmark in 1980.
Morrison Formation. Type locality for the Morrison Formation above the town of Morrison, Colorado. The Morrison Formation is a distinctive sequence of Upper Jurassic sedimentary rock found in the western United States which has been the most fertile source of dinosaur fossils in North America. It is composed of mudstone, sandstone, siltstone ...
5AA.985 [2] Chimney Rock National Monument is a 4,726-acre (1,913 ha) U.S. National Monument in San Juan National Forest in southwestern Colorado which includes an archaeological site. This area is located in Archuleta County, Colorado, between Durango and Pagosa Springs, and is managed for archaeological protection, public interpretation, and ...
Colorado Bend State Park is a 5,328.3-acre (2,156 ha) state park located in the Hill Country region of the U.S. state of Texas, mostly in San Saba County. It was purchased by the state in 1984 and opened to the public in 1987. It is representative of the karst features typically seen in the Hill Country, with many sinkholes, caves, and springs.