Back in August of 2007, Linda & her husband took one of their many trips to Michigan’s Upper Peninsula & visiting Grand Marais, Ishpeming and Copper Harbor. She visited the Jasper Knob just outside of Ishpeming & writes:
It is a banded iron formation. The layers consist of jasper (the red rock) and hematite (the silvery rock). I’m delighted to tell you that some biogeologists believe that banded iron formations were formed by my old pals, the iron bacteria.
Head over to her photo blog for a lot more pictures and for sure check out her book They Breathe Iron for more about iron bacteria.
The Loon Song Covered Bridge aka Joshua’s Crossing is a covered bridge in Lake Ann that was built in 1995 so that guests could access the back of the Herendeen Lake Resort property. The 90-foot bridge crosses a ravine and small creek and was named after Joshua Gabrick, son of resort owner Mark Gabrick. You can get more info about the privately owned bridge on their Facebook page. They’re also selling home sites in case you feel the need to drive across this on the regular!
The International Bridge at Sault Ste. Marie is the only vehicular crossing between Ontario and Michigan within a 300-mile distance, connecting the sister cities of Sault Ste. Marie across the St. Mary’s River.
The high river bluff is the reason for the area’s unusual name. At the turn of the last century, lumbermen needed inexpensive ways to transport timber from the forest to the sawmills and wide-flowing rivers like the Manistee were the answer. Steep banks were used to “rollaway” the logs in a thunderous avalanche to the water where they floated to the mills. Unfortunately, the practice quickly stripped the vegetation from the river banks and, by the time the lumbermen moved on, eroding sand was clogging and narrowing the rivers. In the last 20 years, efforts have been made to stabilize the Manistee River High Banks with fieldstone terraces and replantings. The observation platform was installed in 2001 so visitors could enjoy the stunning view without damaging the fragile system.
British General Brock of the Michigan Command ordered Captain Roberts, on St. Joseph Island, to attack the American Fort on Mackinac Island. That morning Captain Roberts embarked for Michilimackinac on the Northwestern Fur Company’s ship, Caledonia, with two six-pound guns, ten batteaux (flat-bottom boats), and seventy canoes. Captain Roberts’ force was composed of 42 regulars and 4 officers, 260 Canadians, 572 Chippewas and Ottawas, 56 Sioux, 48 Winnebagoes, and 39 Menomonies. The British arrived at Mackinac Island at 3:00 a.m. on July 17.
Fort Mackinaw’s American commander, Lieutenant Hanks, immediately prepared for action. However, around 9:00 in the morning he discovered that the British were in possession of the higher ground above the fort and that British artillery was already directed at the Americans’ most defenseless position. At 11:30 in the morning, the British sent in a flag of truce and the fifty-seven United States officers and enlisted men at the Fort surrendered.
After this victory, the British constructed Fort George (now known as Fort Holmes) about a half-mile behind the main Fort in order to protect it during future invasions. Great Britain retained control of Fort Mackinaw until the United States won it back in the Treaty of Ghent in 1815.
Here’s a #TBT (Throwback Thursday) pic from 3 years ago of the Portage Lake Lift Bridge between Houghton & Hancock on Michigan’s Keweenaw Peninsula. Wikipedia’s Portage Lake Lift Bridge entry says:
The Portage Lake Lift Bridge connects the cities of Hancock and Houghton, Michigan, USA, across Portage Lake, a portion of the waterway which cuts across the Keweenaw Peninsula with a canal linking the final several miles to Lake Superior to the northwest. US 41 and M-26 are both routed across the bridge.
The original bridge on this site was a wooden swing-bridge built in 1875. This was replaced by a steel swing-bridge built by the King Bridge Company in 1901. This bridge was damaged when a ship collided with it in 1905. The center swinging section of the bridge was replaced and a similar incident almost occurred again in 1920, but the ship was able to stop by dropping its anchor, which snagged on the bottom of the lake. In 1959, this bridge was replaced, at a cost of about 11-13 million US dollars (sources vary), by the current bridge which was built by the American Bridge Company.
As its name states, the bridge is a lift bridge with the middle section capable of being lifted from its low point of four feet clearance over the water to a clearance of 100 feet (30 m) to allow boats to pass underneath. The Bridge is the world’s heaviest and widest double-decked vertical lift bridge.Its center span “lifts” to provide 100 feet (30 m) of clearance for ships. The bridge is a crucial lifeline, since it is the only land based link between the north (so-called Copper Island) and south sections of the Keweenaw peninsula.
On Thursday morning, April 13, 2006, the northeast turret of Miners Castle collapsed. One turret remains on Miners Castle, the best-known feature of Pictured Rocks National Lakeshore. The collapse was reported via cell phone by fisherman in the area, according to chief ranger Larry Hach.Most of the rock fell north and into Lake Superior, and there were no injuries. The lower overlook platform near Miners Castle appears to be unaffected.
While the rockfall at Miners Castle on April 13 was startling, such events are not rare along the Pictured Rocks escarpment. At least five major falls have occurred over the past dozen years: 1) two different portions of Grand Portal Point, 2) the eastern side of Indian Head just east of Grand Portal Point, 3) Miners Falls just below the (now modified) viewing platform, and 4) beneath the lip of Munising Falls (along the former trail that went behind the cascade).
All the rockfalls involved the same rock unit, the Miners Castle Member of the Munising Formation. Rock units are named for places where they were first technically described. The Miners Castle Member consists of crumbly cross-bedded sandstone that is poorly cemented by secondary quartz, according to U.S. Geological Survey Research Ecologist Walter Loope.
Emily Bingham of mLive said that she created this list of Amazing Michigan places because “One of my favorite geeky things is meeting someone from out of state and showing them a photo of, say, Grand Portal Point or Empire Bluffs and hearing them say “THAT’s in Michigan?!” So then I decided, hey, how about I just publish a list so I have all my favorite brag-worthy Michigan spots in one place on the internet?? And voila.”
Located in Lake Huron just off the coast of Alpena, this 4,300-square-mile protected area is one of the most significant shipwreck preserves in the entire country. More than 100 shipwrecks have been found here, making it an exciting destination for divers from all over the world.
Click through for 11 more plus a whole bunch of great photos from each of the places!