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Geography fun facts and oddities: Difference between revisions
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== Islands == | == Islands == | ||
"island" from old English ''igland'' or ''iegland'' + French ''isle'' | |||
* '''ieg''' is from PIE '''*akwa''', thus "island" means, literally "water land" | |||
[[File:Mono Lake Tufa.JPG|thumb|right|Mono Lake's "South Tufa" area.]] | [[File:Mono Lake Tufa.JPG|thumb|right|Mono Lake's "South Tufa" area.]] | ||
[[File:17 27 022 mono lake.jpg|thumb|right|17 27 022 mono lake]] | [[File:17 27 022 mono lake.jpg|thumb|right|17 27 022 mono lake]] | ||
=== Mono Lake, California === | |||
*limestone columns, called "tufa towers," rise above the lake surface | An ancient desert lake on the eastern slope of the Sierra Nevadas that has no outflow and thus is highly salinated | ||
* limestone columns, called "tufa towers," rise above the lake surface | |||
* Mono Lake has two prominent islands, Negit Island, notable for its dark, lava origin, and Paoha Island, which was formed only in the 17th century by a series of volcanic eruptions. | * Mono Lake has two prominent islands, Negit Island, notable for its dark, lava origin, and Paoha Island, which was formed only in the 17th century by a series of volcanic eruptions. | ||
[[File:View of Islands, Lake Cobbosseecontee, Me (67039).jpg|thumb|View of Islands, Lake Cobbosseecontee, Me (67039) Cobbosseecontee is a natural lake in the Winthrop Lakes Region, which has natural and man-made lakes along the Androscoggin River watershed region]] | |||
[[File:MonmouthME NorthMonmouthMills.jpg|thumb|TexTech Industries manufacturers tennis ball felt in North Monmouth, Maine, using power from a dam that turned Wilson Stream into [[https://www.maine.gov/ifw/docs/lake-survey-maps/kennebec/wilson_pond.pdf Wilson Pond (1940 Maine government survey]]]] | |||
=== Mill ponds === | |||
When small lakes or ponds are formed by dams built on a stream or river and used to power mills, the highest land points will become no longer hills above the stream but islands, as the water rises around them. | |||
=== Porthmadog, Wales, United Kingdom === | |||
Recovered lowland from an estuary that was blocked off from the sea | |||
Porthmadog presents an inverted lake, whereby the islands, which formerly protruded above the water surface became hills when the lake was drained. | |||
* see https://en.wikipedia.org/wiki/Porthmadog | |||
== Lakes == | == Lakes == | ||