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A pollen diagram of 26 cm well preserved peat profile from the Bear Lakes area reveals the history of vegetational variation during the last 1230 years. The profile was collected from a small depression between two lobes of moraines, and sampled at 1 cm intervals. The bottom of the profile is dated at 1230 y. B.P. by the key bed of the White River Ash. Four local pollen zones can be recognised. Zone 1 represents a forest-shrub tundra vegetation which occupied the area from at least 1230 y. B.P. up to approximately 950 y.B.P. Zone 2 reveals evidence of a …
