Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Soil Conservation Service Site 20a Reservoir | Reservoir | 142 | Limestone | 31 44 07 N | 096 35 25 W |
| Soil Conservation Service Site 20a Reservoir | Reservoir | 250 | Wise | 33 18 24 N | 097 27 55 W |
| Soil Conservation Service Site 21 Dam | Dam | 451 | Brown | 31 43 01 N | 098 50 13 W |
| Soil Conservation Service Site 21 Dam | Dam | 153 | Caldwell | 29 57 25 N | 097 39 13 W |
| Soil Conservation Service Site 21 Dam | Dam | 519 | Callahan | 32 07 36 N | 099 13 37 W |
| Soil Conservation Service Site 21 Dam | Dam | 537 | Coleman | 32 02 13 N | 099 32 31 W |
| Soil Conservation Service Site 21 Dam | Dam | 438 | Coleman | 31 30 13 N | 099 20 19 W |
| Soil Conservation Service Site 21 Dam | Dam | 387 | Comanche | 31 57 25 N | 098 17 01 W |
| Soil Conservation Service Site 21 Dam | Dam | 597 | Concho | 31 12 13 N | 099 43 31 W |
| Soil Conservation Service Site 21 Dam | Dam | 259 | Cooke | 33 28 18 N | 097 24 07 W |
| Soil Conservation Service Site 21 Dam | Dam | 359 | Erath | 32 06 13 N | 098 10 19 W |
| Soil Conservation Service Site 21 Dam | Dam | 125 | Fayette | 29 59 19 N | 096 46 55 W |
| Soil Conservation Service Site 21 Dam | Dam | 201 | Grayson | 33 37 30 N | 096 29 43 W |
| Soil Conservation Service Site 21 Dam | Dam | 221 | Grayson | 33 28 12 N | 096 33 55 W |
| Soil Conservation Service Site 21 Dam | Dam | 220 | Grayson | 33 27 48 N | 096 41 37 W |
| Soil Conservation Service Site 21 Dam | Dam | 137 | Hopkins | 33 00 12 N | 095 44 25 W |
| Soil Conservation Service Site 21 Dam | Dam | 305 | Jack | 33 15 30 N | 098 14 13 W |
| Soil Conservation Service Site 21 Dam | Dam | 145 | Limestone | 31 44 19 N | 096 34 49 W |
| Soil Conservation Service Site 21 Dam | Dam | 192 | McLennan | 31 22 07 N | 097 18 07 W |
| Soil Conservation Service Site 21 Dam | Dam | 149 | McLennan | 31 39 19 N | 096 55 55 W |
| Soil Conservation Service Site 21 Dam | Dam | 87 | Nacogdoches | 31 44 43 N | 094 31 19 W |
| Soil Conservation Service Site 21 Dam | Dam | 298 | Parker | 32 49 06 N | 097 41 13 W |
| Soil Conservation Service Site 21 Dam | Dam | 789 | Wheeler | 35 36 18 N | 100 18 19 W |
| Soil Conservation Service Site 21 Dam | Dam | 138 | Williamson | 30 32 01 N | 097 13 37 W |
| Soil Conservation Service Site 21 Dam | Dam | 190 | Williamson | 30 30 19 N | 097 33 13 W |
| Soil Conservation Service Site 21 Dam | Dam | 231 | Wise | 33 04 00 N | 097 40 43 W |
| Soil Conservation Service Site 21 Dam | Dam | 239 | Wise | 33 20 00 N | 097 26 19 W |
| Soil Conservation Service Site 21 Reservoir | Reservoir | 451 | Brown | 31 43 01 N | 098 50 13 W |
| Soil Conservation Service Site 21 Reservoir | Reservoir | 153 | Caldwell | 29 57 25 N | 097 39 13 W |
| Soil Conservation Service Site 21 Reservoir | Reservoir | 519 | Callahan | 32 07 36 N | 099 13 37 W |
| Soil Conservation Service Site 21 Reservoir | Reservoir | 537 | Coleman | 32 02 13 N | 099 32 31 W |
| Soil Conservation Service Site 21 Reservoir | Reservoir | 438 | Coleman | 31 30 13 N | 099 20 19 W |
| Soil Conservation Service Site 21 Reservoir | Reservoir | 387 | Comanche | 31 57 25 N | 098 17 01 W |
| Soil Conservation Service Site 21 Reservoir | Reservoir | 597 | Concho | 31 12 13 N | 099 43 31 W |
| Soil Conservation Service Site 21 Reservoir | Reservoir | 259 | Cooke | 33 28 18 N | 097 24 07 W |
| Soil Conservation Service Site 21 Reservoir | Reservoir | 359 | Erath | 32 06 13 N | 098 10 19 W |
| Soil Conservation Service Site 21 Reservoir | Reservoir | 125 | Fayette | 29 59 19 N | 096 46 55 W |
| Soil Conservation Service Site 21 Reservoir | Reservoir | 201 | Grayson | 33 37 30 N | 096 29 43 W |
| Soil Conservation Service Site 21 Reservoir | Reservoir | 221 | Grayson | 33 28 12 N | 096 33 55 W |
| Soil Conservation Service Site 21 Reservoir | Reservoir | 220 | Grayson | 33 27 48 N | 096 41 37 W |
| Soil Conservation Service Site 21 Reservoir | Reservoir | 305 | Jack | 33 15 30 N | 098 14 13 W |
| Soil Conservation Service Site 21 Reservoir | Reservoir | 145 | Limestone | 31 44 19 N | 096 34 49 W |
| Soil Conservation Service Site 21 Reservoir | Reservoir | 192 | McLennan | 31 22 07 N | 097 18 07 W |
| Soil Conservation Service Site 21 Reservoir | Reservoir | 149 | McLennan | 31 39 19 N | 096 55 55 W |
| Soil Conservation Service Site 21 Reservoir | Reservoir | 87 | Nacogdoches | 31 44 43 N | 094 31 19 W |
| Soil Conservation Service Site 21 Reservoir | Reservoir | 298 | Parker | 32 49 06 N | 097 41 13 W |
| Soil Conservation Service Site 21 Reservoir | Reservoir | 789 | Wheeler | 35 36 18 N | 100 18 19 W |
| Soil Conservation Service Site 21 Reservoir | Reservoir | 138 | Williamson | 30 32 01 N | 097 13 37 W |
| Soil Conservation Service Site 21 Reservoir | Reservoir | 190 | Williamson | 30 30 19 N | 097 33 13 W |
| Soil Conservation Service Site 21 Reservoir | Reservoir | 231 | Wise | 33 04 00 N | 097 40 43 W |
| Soil Conservation Service Site 21 Reservoir | Reservoir | 239 | Wise | 33 20 00 N | 097 26 19 W |
| Soil Conservation Service Site 21a Dam | Dam | 144 | Kaufman | 32 45 24 N | 096 24 19 W |
| Soil Conservation Service Site 21a Dam | Dam | 241 | Wise | 33 18 42 N | 097 25 19 W |
| Soil Conservation Service Site 21a Reservoir | Reservoir | 144 | Kaufman | 32 45 24 N | 096 24 19 W |
| Soil Conservation Service Site 21a Reservoir | Reservoir | 241 | Wise | 33 18 42 N | 097 25 19 W |
| Soil Conservation Service Site 21b Dam | Dam | 236 | Wise | 33 18 00 N | 097 25 07 W |
| Soil Conservation Service Site 21b Reservoir | Reservoir | 236 | Wise | 33 18 00 N | 097 25 07 W |
| Soil Conservation Service Site 21c Dam | Dam | 233 | Wise | 33 16 36 N | 097 25 49 W |
| Soil Conservation Service Site 21c Reservoir | Reservoir | 232 | Wise | 33 16 36 N | 097 25 49 W |
| Soil Conservation Service Site 21d Dam | Dam | 246 | Wise | 33 17 06 N | 097 24 31 W |
| Soil Conservation Service Site 21d Reservoir | Reservoir | 246 | Wise | 33 17 06 N | 097 24 31 W |
| Soil Conservation Service Site 22 Dam | Dam | 406 | Brown | 31 38 01 N | 098 49 25 W |
| Soil Conservation Service Site 22 Dam | Dam | 519 | Callahan | 32 07 24 N | 099 14 37 W |
| Soil Conservation Service Site 22 Dam | Dam | 512 | Coleman | 32 01 01 N | 099 28 55 W |
| Soil Conservation Service Site 22 Dam | Dam | 425 | Coleman | 31 29 25 N | 099 18 31 W |
| Soil Conservation Service Site 22 Dam | Dam | 382 | Comanche | 31 57 01 N | 098 16 19 W |
| Soil Conservation Service Site 22 Dam | Dam | 610 | Concho | 31 10 25 N | 099 45 37 W |
| Soil Conservation Service Site 22 Dam | Dam | 339 | Erath | 32 04 43 N | 098 09 19 W |
| Soil Conservation Service Site 22 Dam | Dam | 127 | Fayette | 29 59 19 N | 096 46 13 W |
| Soil Conservation Service Site 22 Dam | Dam | 223 | Grayson | 33 27 00 N | 096 33 49 W |
| Soil Conservation Service Site 22 Dam | Dam | 223 | Grayson | 33 27 30 N | 096 41 37 W |
| Soil Conservation Service Site 22 Dam | Dam | 800 | Hemphill | 35 37 18 N | 100 19 19 W |
| Soil Conservation Service Site 22 Dam | Dam | 134 | Hopkins | 32 59 54 N | 095 46 37 W |
| Soil Conservation Service Site 22 Dam | Dam | 342 | Jack | 33 13 24 N | 098 17 25 W |
| Soil Conservation Service Site 22 Dam | Dam | 146 | Limestone | 31 44 25 N | 096 34 19 W |
| Soil Conservation Service Site 22 Dam | Dam | 194 | McLennan | 31 21 07 N | 097 17 49 W |
| Soil Conservation Service Site 22 Dam | Dam | 150 | McLennan | 31 38 37 N | 096 55 07 W |
| Soil Conservation Service Site 22 Dam | Dam | 318 | Montague | 33 36 18 N | 097 35 43 W |
| Soil Conservation Service Site 22 Dam | Dam | 183 | Williamson | 30 29 25 N | 097 32 25 W |
| Soil Conservation Service Site 22 Dam | Dam | 138 | Williamson | 30 32 31 N | 097 13 19 W |
| Soil Conservation Service Site 22 Dam | Dam | 270 | Wise | 33 04 18 N | 097 47 25 W |
| Soil Conservation Service Site 22 Reservoir | Reservoir | 406 | Brown | 31 38 01 N | 098 49 25 W |
| Soil Conservation Service Site 22 Reservoir | Reservoir | 519 | Callahan | 32 07 24 N | 099 14 37 W |
| Soil Conservation Service Site 22 Reservoir | Reservoir | 512 | Coleman | 32 01 01 N | 099 28 55 W |
| Soil Conservation Service Site 22 Reservoir | Reservoir | 425 | Coleman | 31 29 25 N | 099 18 31 W |
| Soil Conservation Service Site 22 Reservoir | Reservoir | 382 | Comanche | 31 57 01 N | 098 16 19 W |
| Soil Conservation Service Site 22 Reservoir | Reservoir | 610 | Concho | 31 10 25 N | 099 45 37 W |
| Soil Conservation Service Site 22 Reservoir | Reservoir | 339 | Erath | 32 04 43 N | 098 09 19 W |
| Soil Conservation Service Site 22 Reservoir | Reservoir | 127 | Fayette | 29 59 19 N | 096 46 13 W |
| Soil Conservation Service Site 22 Reservoir | Reservoir | 223 | Grayson | 33 27 00 N | 096 33 49 W |
| Soil Conservation Service Site 22 Reservoir | Reservoir | 223 | Grayson | 33 27 30 N | 096 41 37 W |
| Soil Conservation Service Site 22 Reservoir | Reservoir | 800 | Hemphill | 35 37 18 N | 100 19 19 W |
| Soil Conservation Service Site 22 Reservoir | Reservoir | 134 | Hopkins | 32 59 54 N | 095 46 37 W |
| Soil Conservation Service Site 22 Reservoir | Reservoir | 342 | Jack | 33 13 24 N | 098 17 25 W |
| Soil Conservation Service Site 22 Reservoir | Reservoir | 146 | Limestone | 31 44 25 N | 096 34 19 W |
| Soil Conservation Service Site 22 Reservoir | Reservoir | 194 | McLennan | 31 21 07 N | 097 17 49 W |
| Soil Conservation Service Site 22 Reservoir | Reservoir | 150 | McLennan | 31 38 37 N | 096 55 07 W |
| Soil Conservation Service Site 22 Reservoir | Reservoir | 317 | Montague | 33 36 18 N | 097 35 43 W |
| Soil Conservation Service Site 22 Reservoir | Reservoir | 183 | Williamson | 30 29 25 N | 097 32 25 W |
| Soil Conservation Service Site 22 Reservoir | Reservoir | 138 | Williamson | 30 32 31 N | 097 13 19 W |
| Soil Conservation Service Site 22 Reservoir | Reservoir | 270 | Wise | 33 04 18 N | 097 47 25 W |
| Soil Conservation Service Site 22a Dam | Dam | 272 | Montague | 33 27 54 N | 097 44 49 W |
| Soil Conservation Service Site 22a Dam | Dam | 290 | Parker | 32 48 36 N | 097 43 01 W |
| Soil Conservation Service Site 22a Reservoir | Reservoir | 272 | Montague | 33 27 54 N | 097 44 49 W |
| Soil Conservation Service Site 22a Reservoir | Reservoir | 290 | Parker | 32 48 36 N | 097 43 01 W |
| Soil Conservation Service Site 23 Dam | Dam | 412 | Brown | 31 36 25 N | 098 47 31 W |
| Soil Conservation Service Site 23 Dam | Dam | 133 | Caldwell | 29 51 19 N | 097 37 31 W |
| Soil Conservation Service Site 23 Dam | Dam | 507 | Callahan | 32 05 42 N | 099 15 55 W |
| Soil Conservation Service Site 23 Dam | Dam | 517 | Coleman | 31 59 43 N | 099 27 19 W |
| Soil Conservation Service Site 23 Dam | Dam | 367 | Comanche | 31 55 49 N | 098 15 49 W |