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  2. Caves of Meghalaya - Wikipedia

    en.wikipedia.org/wiki/Caves_of_Meghalaya

    Limestone mining for the cement industry is a major threat to the Caves of Meghalaya, [4] causing a major collapse of the Krem Mawmluh cave, the seventh longest cave in the state of Meghalaya. The "cave-in" stimulated public awareness of the potential threat mining places to the rich scientific, tourism and ecological heritage.

  3. List of quarries in the United States - Wikipedia

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

    Champion Stone Company, Lueder's Limestone quarry mining from the Lueders Basin outside Abilene, Texas with more than 100 years of Limestone reserves, 14 harvestable layers of limestone and over 12 color options. Tubb Quarry, a shotrock limestone quarry located on the Big Spring Mesa approximately 10 miles south of Big Spring, Texas.

  4. Black Oak Cemetery - Wikipedia

    en.wikipedia.org/wiki/Black_Oak_Cemetery

    The Black Oak Cemetery is a historic cemetery in a remote area of Washington County, Arkansas, southwest of Greenland. It is located on a knob of land at the southern end of a north–south ridge east of Miller Mountain, and is best accessed via spur road running northward from Illinois Chapel Road (County Road 20) west of Arkansas Highway 265 ...

  5. National Register of Historic Places listings in Washington ...

    en.wikipedia.org/wiki/National_Register_of...

    This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Washington County, Arkansas, United States. There are 153 properties and districts listed on the National Register in the county.

  6. St Clair Limestone (geologic formation) - Wikipedia

    en.wikipedia.org/wiki/St_Clair_Limestone...

    It is high density, high magnesium dolomitic limestone. [2] It was originally classified as a marble in Oklahoma due to the fact that it would hold a high polish, hence Marble City. It is sold in slabs and as tiles, in a similar manner as marble would be. [3] This unit has many economic uses in Arkansas and Oklahoma.

  7. Bloyd Formation - Wikipedia

    en.wikipedia.org/wiki/Bloyd_Formation

    Brentwood Limestone Member In the eastern parts of the Ozarks in Arkansas, the Bloyd Formation becomes undifferentiated with the underlying Hale Formation and is called the Witts Springs Formation . Paleontology

  8. Hunton Megagroup - Wikipedia

    en.wikipedia.org/wiki/Hunton_Megagroup

    The name was introduced in 1921 by Hugh Dinsmore Miser in his study of Arkansas, replacing part of the upper St. Clair Limestone. [3] Miser designated a type locality at Tate Spring, located 1.25 miles north of the site of the old Penters Bluff railroad station in Izard County, Arkansas, however, he did not assign a stratotype. As of 2017, a ...

  9. Old Spanish Treasure Cave - Wikipedia

    en.wikipedia.org/wiki/Old_Spanish_Treasure_Cave

    In 1885, a man in Madrid found a map in a family Bible, which also led him to the map etched in limestone. He found the cave, but not the hidden gold. He did not stay long, due to ill health. Then in the 1900s, George Dunbar looked for the gold while pretending to run a mining company. He found a few pieces of the plundered gold.