4,993
edits
(adding glacier errata rocks) |
(→Glacial erratic rocks: bulidiong out sectfion) |
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Line 115: | Line 115: | ||
** 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 === |