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  2. Green River Formation - Wikipedia

    en.wikipedia.org/wiki/Green_River_Formation

    The Green River Formation is an Eocene geologic formation that records the sedimentation in a group of intermountain lakes in three basins along the present-day Green River in Colorado, Wyoming, and Utah. The sediments are deposited in very fine layers, a dark layer during the growing season and a light-hue inorganic layer in the dry season.

  3. List of quarries in the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_quarries_in_the...

    Chile Bar Slate company quarry, off of highway CA193 next to the American River near Placerville, California; Limestone quarry near Auburn, California of the Mountain Quarries Company of San Francisco, a subsidiary of Pacific Portland Cement Company, near confluence of the North Fork and the Middle Fork of the American River.

  4. Dinosaur National Monument - Wikipedia

    en.wikipedia.org/wiki/Dinosaur_National_Monument

    Dinosaur National Monument is an American national monument located on the southeast flank of the Uinta Mountains [4] on the border between Colorado and Utah at the confluence of the Green and Yampa rivers. Although most of the monument area is in Moffat County, Colorado, the Dinosaur Quarry is located in Utah, north of the town of Jensen, Utah.

  5. Crystal Geyser - Wikipedia

    en.wikipedia.org/wiki/Crystal_Geyser

    Crystal Geyser is a cold-water geyser located just above the east bank of the Green River, approximately 9 miles (14 km) downstream from Green River, Utah. It is at approximately 4,062 feet (1,238 m) above sea level. The area surrounding the modern geyser is covered in a thick layer of orange travertine. The travertine is composed of couplets ...

  6. Green River (Colorado River tributary) - Wikipedia

    en.wikipedia.org/wiki/Green_River_(Colorado...

    The Green River, located in the western United States, is the chief tributary of the Colorado River. The watershed of the river, known as the Green River Basin, covers parts of the U.S. states of Wyoming, Utah, and Colorado. The Green River is 730 miles (1,170 km) long, beginning in the Wind River Mountains of Wyoming and flowing through ...

  7. Quarry - Wikipedia

    en.wikipedia.org/wiki/Quarry

    Quarry. A quarry is a type of open-pit mine in which dimension stone, rock, construction aggregate, riprap, sand, gravel, or slate is excavated from the ground. The operation of quarries is regulated in some jurisdictions to manage their safety risks and reduce their environmental impact. [1] [2]

  8. Gravel pit - Wikipedia

    en.wikipedia.org/wiki/Gravel_pit

    A gravel pit is an open-pit mine for the extraction of gravel . Gravel pits often lie in river valleys where the water table is high, so they may naturally fill with water to form ponds or lakes. [1] Gravel pit lakes are typically nutrient rich and can support thriving ecosystems, but can also present environmental issues such as the release of ...

  9. Greater Green River Basin - Wikipedia

    en.wikipedia.org/wiki/Greater_Green_River_Basin

    The Greater Green River Basin (GGRB) is a 21,000 square mile basin located in Southwestern Wyoming. The Basin was formed during the Cretaceous period sourced by underlying Permian and Cretaceous deposits. The GGRB is host to many anticlines created during the Laramide Orogeny trapping many of its hydrocarbon resources.

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