Cattaraugus Creek Basin Aquifer System Indicates external links with no implied endorsement. Figures Figure 1. Aquifer Designated Area Figure 2. Figures Figure 1. Aquifer Designated Area Figure 2.
Ice advances over area and gathers load by eroding bedrock.
Later, at the base of the ice, rock fragments are deposited to form till. Ice begins to melt. Stagnant ice melts. Ice-contact deposits slope toward center of valley. A glacial lake forms in which clay and silt accumulate.