USGS Secondary Hydrogeologic Regions

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