Geography fun facts and oddities: Difference between revisions

→‎Glacial erratic rocks: bulidiong out sectfion
(adding glacier errata rocks)
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** and that are dissimilar (not like) the rocks where they are found
** and that are dissimilar (not like) the rocks where they are found
* Madison Boulder
* Madison Boulder
**  
** 83 ft long, 23 ft high and 37 feet wide
** the largest "glacial erratic" rock in North America
** one of the largest in the world
** it is of granite, while there is no other granite nearby
*** thereby, we know it was moved to that location by glaciers
[https://www.nps.gov/portals/nature/customcf/nnl/assets/images/sites/MABO-NH.jpg|Madison Boulder image (National Park Service)]
see https://www.nhstateparks.org/visit/state-parks/madison-boulder-natural-area


=== Sinkholes ===
=== Sinkholes ===