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Three soil regimes are recognized within the Loch
Vale watershed: alpine ridge, forested, and alluvial/bog soils.
Alpine ridge is confined to Thatchtop Mountain and the ridge above
Andrew's Creek, with smaller areas above treeline in the basin that
holds Sky Pond and Glass Lake. Forested soils are found in the valley
floor below Timberline Falls. Alluvial and bog soils are restricted
to a narrow band adjacent to Icy Brook and in one area of low relief
adjacent to Andrew's Creek. Alpine ridge soils cover 11%, forested
soils 5%, and alluvial/bog soils approximately 1% of the watershed.
The remaining 83% of the Loch Vale basin is bare rock, boulder fields,
surface water, or fields of permanent snow over boulder fields.
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