USGS Secondary Hydrogeologic Regions

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