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Lake Superior Agate - Duluth, Minnesota. The Lake Superior agate is a type of agate stained by iron and found on the shores of Lake Superior.Its wide distribution and iron-rich bands of color reflect the gemstone's geologic history in Minnesota, Wisconsin, Nebraska, Iowa, Kansas, and Michigan.
Two Harbors is a city in and the county seat of Lake County, Minnesota, United States, [5] along the shore of Lake Superior. The population was 3,633 at the 2020 census. [3] Minnesota State Highway 61 serves as a main route in Two Harbors. Gooseberry Falls State Park is 13 miles (21 km) to the northeast.
The sandy beach along the point is an exciting place to look for banded agates, especially after a storm or to take a walk along the sandy shoreline and enjoy the magic of Lake Superior. In 2012, for the fourth year in a row after a 23-year absence, piping plovers nested at Whitefish Point, and successfully fledged offspring.
The Minnesota state gem, the Lake Superior agate, can be found on the shores of Lake Superior, in the streams that run into it, and in gravel pits and road cuts. Duluth's Park Point is an excellent area for hunting, as shorelines and beaches are replenished each year because winter ice and storms push new material up on the shores.
The Lighthouse was built to provide safe passage into the Agate Bay Harbor during the early 20th century, as Two Harbors was a major shipping point for the iron ore of the Mesabi Range. The 49.6-foot (15.1 m) tower is made of red brick and the head keeper's residence is attached; it towers 78 feet (24 m) from the lake level to the top and is 12 ...
Agate (/ ˈ æ ɡ ɪ t / AG-it) is a variety of chalcedony, [1] which comes in a wide variety of colors. Agates are primarily formed within volcanic and metamorphic rocks.The ornamental use of agate was common in ancient Greece, in assorted jewelry and in the seal stones of Greek warriors, [2] while bead necklaces with pierced and polished agate date back to the 3rd millennium BCE in the Indus ...
Grand Marais (pop. 1,351) The area was a bustling fur trading station since the 1700s, and the French voyageurs called the settled village Grand Marais ("Great Marsh"), referring to a marsh that in early fur-trading times was 20 acres (8.1 ha) or less in area, nearly at the level of Lake Superior, and situated at the head of the little bay and ...
The Grand Sable Dunes today form a five-mile-long sand slope that rises from Lake Superior at a 35° angle. The summits of the tallest dunes are as high as 275 feet (85 m) above lake level. Glacial melt during the last major advance/retreat called the Marquette Readvance created the conditions for the formation of the Grand Sable Banks.