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Legend (Inventory_Geology/Digital_Geologic_Map_of_Indiana_Dunes_National_Lakeshore_and_Vicinity_Indiana)

INDU - Surficial Contacts (0)
approximate approximate
map boundary map boundary
water or shoreline water or shoreline
INDU - Surficial Units (1)
Qlmm - Filled and modified/disturbed land (Holocene) Qlmm - Filled and modified/disturbed land (Holocene)
Qlma1 - Channel and floodplain (Holocene) Qlma1 - Channel and floodplain (Holocene)
Qlma2 - Channel and floodplain over older valley fill (Holocene) Qlma2 - Channel and floodplain over older valley fill (Holocene)
Qlmts - Strandplain (Holocene) Qlmts - Strandplain (Holocene)
Qlmtd - Dunes (Holocene) Qlmtd - Dunes (Holocene)
Qlmtl - Lagoon (Holocene) Qlmtl - Lagoon (Holocene)
Qlmcn - Nearshore (late Wisconsin (Pleistocene)) Qlmcn - Nearshore (late Wisconsin (Pleistocene))
Qlmcd - Dunes (late Wisconsin (Pleistocene)) Qlmcd - Dunes (late Wisconsin (Pleistocene))
Qlmcl - Lagoon (late Wisconsin (Pleistocene)) Qlmcl - Lagoon (late Wisconsin (Pleistocene))
Qlmgd - Nearshore, dunes (late Wisconsin (Pleistocene)) Qlmgd - Nearshore, dunes (late Wisconsin (Pleistocene))
Qlmgs - Spit (late Wisconsin (Pleistocene)) Qlmgs - Spit (late Wisconsin (Pleistocene))
Qlmgp - Spit platform (late Wisconsin (Pleistocene)) Qlmgp - Spit platform (late Wisconsin (Pleistocene))
Qlbl1 - Glenwood embayment fill (late Wisconsin (Pleistocene)) Qlbl1 - Glenwood embayment fill (late Wisconsin (Pleistocene))
Qlbl2 - Beach, colluvial slope, and fan delta complex (late Wisconsin (Pleistocene)) Qlbl2 - Beach, colluvial slope, and fan delta complex (late Wisconsin (Pleistocene))
Qlbl3 - Ice-marginal lake complex (late Wisconsin (Pleistocene)) Qlbl3 - Ice-marginal lake complex (late Wisconsin (Pleistocene))
Qlbm1 - Lake border ridges (late Wisconsin (Pleistocene)) Qlbm1 - Lake border ridges (late Wisconsin (Pleistocene))
Qlbr1 - Tinley inner ramp (late Wisconsin (Pleistocene)) Qlbr1 - Tinley inner ramp (late Wisconsin (Pleistocene))
Qlbr2 - Tinley collapsed ramp (late Wisconsin (Pleistocene)) Qlbr2 - Tinley collapsed ramp (late Wisconsin (Pleistocene))
Qlbm2 - Tinley ridge (late Wisconsin (Pleistocene)) Qlbm2 - Tinley ridge (late Wisconsin (Pleistocene))
Qlbm3 - Tinley outer fringe (late Wisconsin (Pleistocene)) Qlbm3 - Tinley outer fringe (late Wisconsin (Pleistocene))
Qlbm4 - Ice-marginal drainage trough (late Wisconsin (Pleistocene)) Qlbm4 - Ice-marginal drainage trough (late Wisconsin (Pleistocene))
Qvr1 - Inner ramp (late Wisconsin (Pleistocene)) Qvr1 - Inner ramp (late Wisconsin (Pleistocene))
Qvr2 - Hummocky inner ramp (late Wisconsin (Pleistocene)) Qvr2 - Hummocky inner ramp (late Wisconsin (Pleistocene))
Qvr3 - Dissected ramp (late Wisconsin (Pleistocene)) Qvr3 - Dissected ramp (late Wisconsin (Pleistocene))
Qvm1 - Collapsed head-of-fan (late Wisconsin (Pleistocene)) Qvm1 - Collapsed head-of-fan (late Wisconsin (Pleistocene))
Qvm2a - Broad upland (late Wisconsin (Pleistocene)) Qvm2a - Broad upland (late Wisconsin (Pleistocene))
Qvm2b - Core upland (late Wisconsin (Pleistocene)) Qvm2b - Core upland (late Wisconsin (Pleistocene))
Qvm3 - Inner fringe (late Wisconsin (Pleistocene)) Qvm3 - Inner fringe (late Wisconsin (Pleistocene))
Qvm4 - Outer fringe (late Wisconsin (Pleistocene)) Qvm4 - Outer fringe (late Wisconsin (Pleistocene))
Qvm5 - Outermost fringe (late Wisconsin (Pleistocene)) Qvm5 - Outermost fringe (late Wisconsin (Pleistocene))
Qvm6 - Meltwater-scoured core (late Wisconsin (Pleistocene)) Qvm6 - Meltwater-scoured core (late Wisconsin (Pleistocene))
Qvm7 - Intra-channel low (late Wisconsin (Pleistocene)) Qvm7 - Intra-channel low (late Wisconsin (Pleistocene))
Qvm8 - Intra-channel low/collapsed drainage (late Wisconsin (Pleistocene)) Qvm8 - Intra-channel low/collapsed drainage (late Wisconsin (Pleistocene))
Qvt1 - Collapsed channel (late Wisconsin (Pleistocene)) Qvt1 - Collapsed channel (late Wisconsin (Pleistocene))
Qvt2 - Filled channel (late Wisconsin (Pleistocene)) Qvt2 - Filled channel (late Wisconsin (Pleistocene))
Qvt3 - Dissected channel walls (late Wiscosnin (Pleistocene)) Qvt3 - Dissected channel walls (late Wiscosnin (Pleistocene))
Qvf1 - Upper fan surface (late Wisconsin (Pleistocene)) Qvf1 - Upper fan surface (late Wisconsin (Pleistocene))
Qvf2 - Collapsed fan (late Wisconsin (Pleistocene)) Qvf2 - Collapsed fan (late Wisconsin (Pleistocene))
Qvf3 - Mixed fan (late Wisconsin (Pleistocene)) Qvf3 - Mixed fan (late Wisconsin (Pleistocene))
Qvf4 - Open fan channels (late Wisconsin (Pleistocene)) Qvf4 - Open fan channels (late Wisconsin (Pleistocene))
Qvf5 - Lower fan surface (late Wisconsin (Pleistocene)) Qvf5 - Lower fan surface (late Wisconsin (Pleistocene))
Qvs - Dunes (late Wisconsin (Pleistocene)) Qvs - Dunes (late Wisconsin (Pleistocene))
Qvk - Kanakee River floodplain (late Wisconsin (Pleistocene)) Qvk - Kanakee River floodplain (late Wisconsin (Pleistocene))