Quarries and clay mines (1)
| Clay |
| Gneiss |
Bedrock Geology (2)
| Pyroxene-bearing plug-like intrusions, Pp |
| Gabbro and diorite, Pgd |
| Little Falls Formation, Pls |
| Granitoid pluton, APg |
| Dioritic to gabboric intrusion, APd |
| Sacred Heart Granite, Asg |
| Fort Ridgely Granite, Afg |
| Quartz monzonite, granite and graonodiorite, Aqm |
| Gabbro or diorite, Agd |
| Foliated leucongranite and pegmatite, Alg |
| Foliated diorite, granodiorite, or tonalite, Ald |
| Amphibolitic schist, Aav |
| Morton Gneiss-tonalitic to granodioritic orthogneiss, Amt |
| Morton Gneiss-granite-rich migmatitic gneiss, Amg |
| Morton Gneiss-paragneiss, amphibolite, and migmatite, Amp |
| Morton Gneiss-granitic paragneiss, Amn |
| Morton Gneiss-amphibolite adn amphibolitic gneiss, Ama |
|
| Morton Gneis-mafic orthogneiss, amphibolite, and migmatite, Amo |
| Montevideo Gneiss-granitic gneiss, Atm |
| Montevideo Gneiss-mafic phase, Atg |
Bedrock Geology line (3)
| contact |
| fault |
| thrust fault |
Bedrock topography polygons (4)
| 601-650 |
| 651-700 |
| 701-750 |
| 751-800 |
| 801-850 |
| 851-900 |
| 901-950 |
| 951-1000 |
| Link Bedrock Topography |
Depth to bedrock surface (ft.) (5)
| 1-50 |
|
| 51-100 |
| 101-150 |
| 151-200 |
| 201-250 |
| 251-300 |
| 301-350 |
| 351-400 |
| 401-450 |
| 451-500 |
| 501-550 |
|
| Link |
Geomorphic line symbols (6)
| Linear ridge |
| Ice margin |
| Broad, Irregular trough |
Structure lines and lineations (7)
| antiform |
| synform |
| fold axis based on mag |
| linear mag anom |
| outcrop lineation |
Thickness-undifferentiated sediment-Qups (ft.) (8)
Thickness of surface sand-ss (ft.) (9)
Surficial geology (10)
| Alluvium |
| Alluvial fan sediment |
| Modern lake sediment |
| Colluvium |
| Glacial River Warren fluvial deposits |
| Buried bedrock, shallow |
| Glacial stream sediment |
| Collapsed stream sediment |
| Glacial lake sediment |
| Glacial lake sediment, modified glacial sediment |
| Glacial moraine |
| Washed till |
| Glacial shear-zone sediment |
| Bedrock |
| Quaternary |
Tritium (12)
Contour (13)
Pollution sensitivity (14)
Depth to water table (15)
| 0 to 10 |
| >10 to 20 |
| >20 to 30 |
| >30 to 40 |
| >40 to 50 |
| >50 |
Water-table elevation (16)
| >800 to 825 |
| >825 to 850 |
| >850 to 875 |
| >875 to 900 |
| >900 to 925 |
| >925 to 950 |
| >950 to 975 |
| >975 to 1000 |
| >1000 to 1025 |
| >1025 to 1050 |
| >1050 to 1075 |
| >1075 to 1100 |
| >1100 to 1125 |
| >1125 to 1150 |
Pollution sensitivity of near-surface materials (17)
| nsH |
| nsM |
| nsL |
| nsVL |
| bedrock |
| water |
Elevations of buried sand and gravel aquifers (18)
| >800 to 850 |
| >850 to 900 |
| >900 to 950 |
| >950 to 1000 |
| >1000 to 1050 |
| >1050 to 1100 |
| >1100 to 1150 |
|
