USGS Secondary Hydrogeologic Regions

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