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Bright and Glory Lakes are known as Kettle Lakes. A Kettle Lake is a hollow or depression created when buried chunks or blocks of glacial ice melts after the receding glacier. Debris, such as stones, soil and rocks, from the receding glacier filled in around the ice block. The name comes from the kettle or bowl like impression in the earth it leaves behind. These two lakes were formed from the Wisconsinan glacier that covered much of northern North America more than 10,000 years ago. The chunks of ice melted forming huge depressions in the earth. Over time the glacial melt would leave water in the holes forming lakes or holes. They can also be fed from underground or above ground streams and rivers. Another way Kettles are formed is when ice dammed lakes were suddenly drained as this would also create a kettle. These type of lakes are rarely more than 33 feet deep with these two lakes being an exception. If the Kettle recieves the water from rain, the groundwater table, or a combination and conditions are acidic then a Kettle Bog may form, however a Kettle Peat will develop in alkaline conditions. In Michigan most lakes are described as Kettle Lakes. Bright and Glory Lakes are 64 and 38 feet.
As stated above the depth of most kettles is less than ten meters. In most cases, kettle holes eventually fill with water, sediment, or vegetation. If the kettle is fed by surface or underground rivers or streams, it becomes a kettle lake. If the kettle receives its water from precipitation, the groundwater table, or a combination of the two, it is termed a kettle pond or kettle wetland, if vegetated. Kettle ponds that are not affected by the groundwater table will usually become dry during the warm summer months, in which case they are deemed ephemeral.
To log this Earth cache you must answer the questions and submit them to me within 3 days. Failure to do so will result in a deletion of your online log.
To get credit for this Earth Cache, please message me the answers through Geocaching:
1. What are the depths of the each lake?
2. Describe the bottom of either lake is it sandy, stony/rocky, or you do sink in when you step in or push on the bottom?
3. Please attach a picture of the lake with you in the picture or some thing personal like a hand or foot or car keys. Whatever you prefer
Information comes from https://en.wikipedia.org/wiki/Kettle_(landform) and http://geo.msu.edu/extra/geogmich/kettle_lakes.html and the informational sign on site
To log this Earth cache you must answer the questions and submit them to me within 3 days. Failure to do so will result in a deletion of your online log.