USGS Secondary Hydrogeologic Regions
Map
Limit:
Items in this collection: 68
Items
| uri | fid | id | primarylit | type | geologicpr | subprovinc |
|---|---|---|---|---|---|---|
| https://geoconnex.us/ref/sec_hydrg_reg/S01 | 63 | S01 | Sedimentary | NN | Cordilleran | Western |
| https://geoconnex.us/ref/sec_hydrg_reg/S02 | 64 | S02 | Volcanic | NN | Cordilleran | Western |
| https://geoconnex.us/ref/sec_hydrg_reg/S04 | 38 | S04 | Crystalline | NN | Cordilleran | Western |
| https://geoconnex.us/ref/sec_hydrg_reg/S05 | 27 | S05 | Volcanic | NN | Cordilleran | Western |
| https://geoconnex.us/ref/sec_hydrg_reg/S06 | 32 | S06 | Volcanic | NN | Cordilleran | Western |
| https://geoconnex.us/ref/sec_hydrg_reg/S07 | 25 | S07 | Crystalline | NN | Cordilleran | Western |
| https://geoconnex.us/ref/sec_hydrg_reg/S08 | 12 | S08 | Sedimentary | NN | Cordilleran | Western |
| https://geoconnex.us/ref/sec_hydrg_reg/S09 | 53 | S09 | Crystalline | NN | Cordilleran | Western |
| https://geoconnex.us/ref/sec_hydrg_reg/S10 | 51 | S10 | Mixed | NN | Cordilleran | Western |
| https://geoconnex.us/ref/sec_hydrg_reg/S11 | 48 | S11 | Volcanic | NN | Cordilleran | Intermountain |
| https://geoconnex.us/ref/sec_hydrg_reg/S12 | 7 | S12 | Mixed | NN | Cordilleran | Intermountain |
| https://geoconnex.us/ref/sec_hydrg_reg/S13 | 4 | S13 | Mixed | NN | Cordilleran | Intermountain |
| https://geoconnex.us/ref/sec_hydrg_reg/S14 | 18 | S14 | Sedimentary | NN | Cordilleran | Intermountain |
| https://geoconnex.us/ref/sec_hydrg_reg/S15 | 67 | S15 | Sedimentary | NN | Cordilleran | Intermountain |
| https://geoconnex.us/ref/sec_hydrg_reg/S16 | 50 | S16 | Volcanic | NN | Cordilleran | Intermountain |
| https://geoconnex.us/ref/sec_hydrg_reg/S17 | 42 | S17 | Crystalline | NN | Cordilleran | Rocky Mountains |
| https://geoconnex.us/ref/sec_hydrg_reg/S18 | 40 | S18 | Sedimentary | NN | Cordilleran | Rocky Mountains |
| https://geoconnex.us/ref/sec_hydrg_reg/S19 | 41 | S19 | Volcanic | NN | Cordilleran | Rocky Mountains |
| https://geoconnex.us/ref/sec_hydrg_reg/S20 | 39 | S20 | Sedimentary | NN | Cordilleran | Rocky Mountains |
| https://geoconnex.us/ref/sec_hydrg_reg/S21 | 31 | S21 | Crystalline | NN | Cordilleran | Rocky Mountains |
| https://geoconnex.us/ref/sec_hydrg_reg/S22 | 29 | S22 | Sedimentary | NN | Cordilleran | Rocky Mountains |
| https://geoconnex.us/ref/sec_hydrg_reg/S23 | 30 | S23 | Volcanic | NN | Cordilleran | Rocky Mountains |
| https://geoconnex.us/ref/sec_hydrg_reg/S24 | 56 | S24 | Crystalline | NN | Cordilleran | Rocky Mountains |
| https://geoconnex.us/ref/sec_hydrg_reg/S25 | 54 | S25 | Sedimentary | NN | Cordilleran | Rocky Mountains |
| https://geoconnex.us/ref/sec_hydrg_reg/S26 | 55 | S26 | Volcanic | NN | Cordilleran | Rocky Mountains |
| https://geoconnex.us/ref/sec_hydrg_reg/S27 | 6 | S27 | Crystalline | NN | Central Interior | Unglaciated |
| https://geoconnex.us/ref/sec_hydrg_reg/S28 | 5 | S28 | Sedimentary | YN | Central Interior | Unglaciated |
| https://geoconnex.us/ref/sec_hydrg_reg/S29 | 17 | S29 | Sedimentary | NN | Central Interior | Unglaciated |
| https://geoconnex.us/ref/sec_hydrg_reg/S30 | 62 | S30 | Sedimentary | NN | Central Interior | Unglaciated |
| https://geoconnex.us/ref/sec_hydrg_reg/S31 | 49 | S31 | Sedimentary | NN | Central Interior | Unglaciated |
| https://geoconnex.us/ref/sec_hydrg_reg/S32 | 13 | S32 | Sedimentary | NN | Central Interior | Unglaciated |
| https://geoconnex.us/ref/sec_hydrg_reg/S33 | 24 | S33 | Sedimentary | NN | Central Interior | Unglaciated |
| https://geoconnex.us/ref/sec_hydrg_reg/S34 | 23 | S34 | Sedimentary | NN | Central Interior | Unglaciated |
| https://geoconnex.us/ref/sec_hydrg_reg/S35 | 43 | S35 | Sedimentary | YN | Central Interior | Unglaciated |
| https://geoconnex.us/ref/sec_hydrg_reg/S36 | 47 | S36 | Sedimentary | YN | Central Interior | Unglaciated |
| https://geoconnex.us/ref/sec_hydrg_reg/S37 | 46 | S37 | Crystalline | NN | Central Interior | Unglaciated |
| https://geoconnex.us/ref/sec_hydrg_reg/S38 | 3 | S38 | Sedimentary | NN | Central Interior | Unglaciated |
| https://geoconnex.us/ref/sec_hydrg_reg/S39 | 60 | S39 | Sedimentary | NN | Central Interior | Unglaciated |
| https://geoconnex.us/ref/sec_hydrg_reg/S40 | 57 | S40 | Sedimentary | NN | Central Interior | Unglaciated |
| https://geoconnex.us/ref/sec_hydrg_reg/S41 | 59 | S41 | Sedimentary | NN | Central Interior | Unglaciated |
| https://geoconnex.us/ref/sec_hydrg_reg/S42 | 66 | S42 | Sedimentary | NN | Central Interior | Unglaciated |
| https://geoconnex.us/ref/sec_hydrg_reg/S43 | 65 | S43 | Volcanic | NN | Central Interior | Unglaciated |
| https://geoconnex.us/ref/sec_hydrg_reg/S44 | 26 | S44 | Mixed | NN | Central Interior | Unglaciated |
| https://geoconnex.us/ref/sec_hydrg_reg/S45 | 14 | S45 | Sedimentary | YN | Central Interior | Unglaciated |
| https://geoconnex.us/ref/sec_hydrg_reg/S46 | 61 | S46 | Sedimentary | NY | Central Interior | Glaciated |
| https://geoconnex.us/ref/sec_hydrg_reg/S47 | 8 | S47 | Crystalline | NY | Central Interior | Glaciated |
| https://geoconnex.us/ref/sec_hydrg_reg/S48 | 36 | S48 | Crystalline | NY | Central Interior | Glaciated |
| https://geoconnex.us/ref/sec_hydrg_reg/S49 | 35 | S49 | Sedimentary | NY | Central Interior | Glaciated |
| https://geoconnex.us/ref/sec_hydrg_reg/S50 | 2 | S50 | Sedimentary | YY | Central Interior | Glaciated |
| https://geoconnex.us/ref/sec_hydrg_reg/S51 | 45 | S51 | Sedimentary | NY | Central Interior | Glaciated |
| https://geoconnex.us/ref/sec_hydrg_reg/S52 | 22 | S52 | Sedimentary | YY | Central Interior | Glaciated |
| https://geoconnex.us/ref/sec_hydrg_reg/S53 | 1 | S53 | Crystalline | NY | Central Interior | Glaciated |
| https://geoconnex.us/ref/sec_hydrg_reg/S54 | 33 | S54 | Sedimentary | NY | Central Interior | Glaciated |
| https://geoconnex.us/ref/sec_hydrg_reg/S55 | 37 | S55 | Sedimentary | NY | Central Interior | Glaciated |
| https://geoconnex.us/ref/sec_hydrg_reg/S56 | 20 | S56 | Sedimentary | YY | Central Interior | Glaciated |
| https://geoconnex.us/ref/sec_hydrg_reg/S57 | 21 | S57 | Sedimentary | YY | Central Interior | Glaciated |
| https://geoconnex.us/ref/sec_hydrg_reg/S58 | 11 | S58 | Crystalline | NY | Appalachian | Appalachian |
| https://geoconnex.us/ref/sec_hydrg_reg/S59 | 10 | S59 | Sedimentary | NY | Appalachian | Appalachian |
| https://geoconnex.us/ref/sec_hydrg_reg/S60 | 34 | S60 | Crystalline | NY | Appalachian | Appalachian |
| https://geoconnex.us/ref/sec_hydrg_reg/S61 | 9 | S61 | Crystalline | NY | Appalachian | Appalachian |
| https://geoconnex.us/ref/sec_hydrg_reg/S62 | 68 | S62 | Sedimentary | NN | Appalachian | Appalachian |
| https://geoconnex.us/ref/sec_hydrg_reg/S63 | 44 | S63 | Sedimentary | NN | Appalachian | Ouachita |
| https://geoconnex.us/ref/sec_hydrg_reg/S64 | 58 | S64 | Sedimentary | NN | Coastal Plain | Coastal Plain |
| https://geoconnex.us/ref/sec_hydrg_reg/S65 | 28 | S65 | Sedimentary | YN | Coastal Plain | Coastal Plain |
| https://geoconnex.us/ref/sec_hydrg_reg/S66 | 19 | S66 | Sedimentary | YN | Coastal Plain | Coastal Plain |
| https://geoconnex.us/ref/sec_hydrg_reg/S67 | 52 | S67 | Sedimentary | YN | Coastal Plain | Coastal Plain |
| https://geoconnex.us/ref/sec_hydrg_reg/S68 | 16 | S68 | Sedimentary | YN | Coastal Plain | Coastal Plain |
| https://geoconnex.us/ref/sec_hydrg_reg/S69 | 15 | S69 | Sedimentary | YN | Coastal Plain | Coastal Plain |