Search results
Results From The WOW.Com Content Network
The Fairburn Agate is a type of gemstone found in the agate beds of Southwestern South Dakota and Northwestern Nebraska. It is also the state gemstone of South Dakota. [ 1 ] Fairburns are characterized from other types of agate by their colors and the shape of the bands.
Moss Agate Creek is a stream in the U.S. state of South Dakota. [1] Moss Agate Creek derives its name from deposits of ... List of rivers of South Dakota; References
^ Florida's state gem, moonstone, was adopted to highlight Florida's role in the United States' Lunar program, which landed the first astronauts on the Moon. [81] ^ Since 1983, Massachusetts has had 3 other official state rocks: State Historical Rock (Plymouth Rock), State Explorer Rock (Dighton Rock), and State Building and Monument Stone . In ...
The gas pockets in which the agates formed were primarily small, about 1 cm in diameter. A few Lake Superior agates have been found that are 22 cm in diameter with a mass exceeding 10 kilograms. Very large agates are extremely rare. The most common type of Lake Superior agate is the fortification agate with its eye-catching banding patterns ...
According to the South Dakota State Historical Society's Archaeological Research Center, over 26,000 archaeological sites have been recorded in the U.S. state of South Dakota. [1] This list is broken down by county and encompasses sites across all of what is now South Dakota. Only notable sites are listed.
This is a list of rivers in the state of South Dakota in the United States. By tributary. Minnesota River ... South Fork Moreau River; Cheyenne River. Battle Creek.
Prehistorically, the south end of Lake Traverse was the southern outlet of glacial Lake Agassiz across the Traverse Gap into Glacial River Warren; that river carved the valley now occupied by the present-day Minnesota River. The town of Browns Valley, Minnesota lies within the gap between the two lakes. The Browns Valley Dike was constructed in ...
Sioux Quartzite at Falls Park, Sioux Falls, South Dakota Cross-bedding in the Sioux Quartzite, Blue Mounds State Park, Minnesota, United States.. The Sioux Quartzite is a Proterozoic quartzite that is found in the region around the intersection of Minnesota, South Dakota, and Iowa, and correlates with other rock units throughout the upper midwestern and southwestern United States.