Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Mayfield | Populated Place | 611 | Beckham | 35 20 20 N | 099 52 36 W |
| Shattuck Hospital Heliport | Airport | 710 | Ellis | 36 15 00 N | 099 52 32 W |
| Ebenezer Baptist Church | Church | 690 | Ellis | 36 16 26 N | 099 52 28 W |
| Erick Elementary School | School | 631 | Beckham | 35 12 50 N | 099 52 26 W |
| Fish Creek | Stream | | Greer | 35 00 37 N | 099 52 25 W |
| Minnow Creek | Stream | | Beckham | 35 02 58 N | 099 52 20 W |
| Oknoname 129009 Dam | Dam | 640 | Roger Mills | 35 24 00 N | 099 52 19 W |
| Oknoname 129009 Reservoir | Reservoir | 640 | Roger Mills | 35 24 00 N | 099 52 19 W |
| Hackberry Cemetery | Cemetery | 568 | Greer | 34 58 20 N | 099 52 18 W |
| Tepee Creek | Stream | | Harmon | 34 31 56 N | 099 52 18 W |
| United Pentecostal Church | Church | 729 | Roger Mills | 35 48 47 N | 099 52 16 W |
| Tea Cross Cemetery | Cemetery | 558 | Harmon | 34 47 53 N | 099 52 06 W |
| Belleview Cemetery | Cemetery | 724 | Roger Mills | 35 57 23 N | 099 52 05 W |
| Camp Hollow | Valley | | Roger Mills | 35 41 07 N | 099 52 01 W |
| Buffalo Creek | Stream | | Beckham | 35 18 45 N | 099 51 59 W |
| Erick | Populated Place | 629 | Beckham | 35 12 55 N | 099 51 59 W |
| West Buffalo Creek | Stream | | Beckham | 35 20 40 N | 099 51 58 W |
| Erick High School | School | 628 | Beckham | 35 12 41 N | 099 51 54 W |
| Township of Ohio | Civil | 733 | Ellis | 36 12 10 N | 099 51 51 W |
| Stink Creek | Stream | | Harper | 36 59 09 N | 099 51 49 W |
| Seventh-Day Adventist Cemetery | Cemetery | 735 | Ellis | 36 12 09 N | 099 51 48 W |
| Russell Overton Dam | Dam | 535 | Harmon | 34 55 48 N | 099 51 37 W |
| Russell Overton Reservoir | Reservoir | 535 | Harmon | 34 55 48 N | 099 51 37 W |
| Vinson | Populated Place | 573 | Harmon | 34 54 02 N | 099 51 35 W |
| Ron | Populated Place | 555 | Harmon | 34 47 32 N | 099 51 35 W |
| Upper Washita Site 64 Dam | Dam | 675 | Roger Mills | 35 43 54 N | 099 51 31 W |
| Upper Washita Site 64 Reservoir | Reservoir | 675 | Roger Mills | 35 43 54 N | 099 51 31 W |
| Commission Creek | Stream | | Ellis | 36 00 13 N | 099 51 29 W |
| Brookside Cemetery | Cemetery | 669 | Roger Mills | 35 26 38 N | 099 51 29 W |
| Upper Washita Site 54 Dam | Dam | 652 | Roger Mills | 35 40 36 N | 099 51 19 W |
| Upper Washita Site 54 Reservoir | Reservoir | 652 | Roger Mills | 35 40 36 N | 099 51 19 W |
| Spring Creek | Stream | | Harper | 36 41 04 N | 099 51 18 W |
| Cave Creek Cemetery | Cemetery | 564 | Harmon | 34 53 06 N | 099 51 17 W |
| Twin Hills | Summit | 779 | Roger Mills | 35 52 21 N | 099 51 12 W |
| Township of Wilcox | Civil | 720 | Roger Mills | 35 57 40 N | 099 51 11 W |
| Michael Airport | Airport | 485 | Harmon | 34 40 15 N | 099 51 02 W |
| Shirley Thompson Dam | Dam | 665 | Roger Mills | 35 27 00 N | 099 51 01 W |
| Shirley Thompson Reservoir | Reservoir | 665 | Roger Mills | 35 27 00 N | 099 51 01 W |
| Harmon County | Civil | 541 | Harmon | 34 46 00 N | 099 51 01 W |
| Mayfield NE Gas Field | Oilfield | 600 | Beckham | 35 22 00 N | 099 50 57 W |
| Hackberry Creek | Stream | | Greer | 34 58 35 N | 099 50 57 W |
| Chaney | Populated Place | 720 | Ellis | 36 28 45 N | 099 50 55 W |
| Township of Richland | Civil | 632 | Beckham | 35 06 50 N | 099 50 51 W |
| Bachman Dam | Dam | 656 | Roger Mills | 35 54 48 N | 099 50 49 W |
| Bachman Reservoir | Reservoir | 656 | Roger Mills | 35 54 48 N | 099 50 49 W |
| Claude Seymour Dam | Dam | 543 | Harmon | 34 51 36 N | 099 50 49 W |
| Claude Seymour Reservoir | Reservoir | 543 | Harmon | 34 51 36 N | 099 50 49 W |
| Middle Buffalo Creek | Stream | | Beckham | 35 22 15 N | 099 50 47 W |
| West Fork Sandy Creek | Stream | | Harmon | 34 38 26 N | 099 50 39 W |
| East Fork Sandy Creek | Stream | | Harmon | 34 38 27 N | 099 50 36 W |
| Dryden Church | Church | 532 | Harmon | 34 45 17 N | 099 50 33 W |
| Star Valley | Valley | | Harmon | 34 37 52 N | 099 50 33 W |
| KVIJ-TV (Sayre) | Tower | 647 | Roger Mills | 35 25 25 N | 099 50 31 W |
| Buffalo Cemetery | Cemetery | 629 | Beckham | 35 23 20 N | 099 50 31 W |
| Township of Erick | Civil | 622 | Beckham | 35 13 50 N | 099 50 31 W |
| New Life Church | Church | 624 | Beckham | 35 21 03 N | 099 50 30 W |
| West Red Bluff Creek | Stream | | Ellis | 36 02 44 N | 099 50 29 W |
| Upper Washita Site 63 Dam | Dam | 640 | Roger Mills | 35 44 06 N | 099 50 25 W |
| Upper Washita Site 63 Reservoir | Reservoir | 640 | Roger Mills | 35 44 06 N | 099 50 25 W |
| Buffalo Church | Church | 634 | Beckham | 35 23 50 N | 099 50 24 W |
| Spring Creek Campground | Locale | 667 | Roger Mills | 35 46 22 N | 099 50 22 W |
| Spring Creek | Stream | | Roger Mills | 35 45 29 N | 099 50 16 W |
| Oknoname 35935 Dam | Dam | 639 | Harper | 36 53 06 N | 099 50 13 W |
| Oknoname 35935 Reservoir | Reservoir | 639 | Harper | 36 53 06 N | 099 50 13 W |
| Upper Washita Site 42 Dam | Dam | 663 | Roger Mills | 35 46 18 N | 099 50 13 W |
| Upper Washita Site 42 Reservoir | Reservoir | 663 | Roger Mills | 35 46 18 N | 099 50 13 W |
| Spring Creek Lake | Reservoir | 665 | Roger Mills | 35 46 16 N | 099 50 11 W |
| Hanawalt Dam | Dam | 669 | Roger Mills | 35 54 06 N | 099 50 07 W |
| Hanawalt Reservoir | Reservoir | 669 | Roger Mills | 35 54 06 N | 099 50 07 W |
| Dewayne Meyers Dam | Dam | 515 | Harmon | 34 50 06 N | 099 50 07 W |
| Dewayne Meyers Reservoir | Reservoir | 515 | Harmon | 34 50 06 N | 099 50 07 W |
| Sandy Sanders State Wildlife Management Area | Park | 622 | Beckham | 35 02 44 N | 099 50 01 W |
| Upper Washita Site 65 Dam | Dam | 654 | Roger Mills | 35 43 48 N | 099 49 55 W |
| Upper Washita Site 65 Reservoir | Reservoir | 654 | Roger Mills | 35 43 48 N | 099 49 55 W |
| Little Turkey Creek | Stream | | Beckham | 35 18 21 N | 099 49 51 W |
| Oknoname 05902 Dam | Dam | 636 | Harper | 36 53 00 N | 099 49 43 W |
| Oknoname 05902 Reservoir | Reservoir | 636 | Harper | 36 53 00 N | 099 49 43 W |
| Frank McKram Dam | Dam | 661 | Roger Mills | 35 56 18 N | 099 49 43 W |
| Frank McKram Reservoir | Reservoir | 661 | Roger Mills | 35 56 18 N | 099 49 43 W |
| Louis Cemetery | Cemetery | 473 | Harmon | 34 33 39 N | 099 49 42 W |
| Oknoname 05903 Dam | Dam | 604 | Harper | 36 55 12 N | 099 49 37 W |
| Oknoname 05903 Reservoir | Reservoir | 604 | Harper | 36 55 12 N | 099 49 37 W |
| Parker Number 1 Dam | Dam | 678 | Ellis | 36 03 48 N | 099 49 37 W |
| Parker Number 1 Reservoir | Reservoir | 678 | Ellis | 36 03 48 N | 099 49 37 W |
| Upper Washita Site 57 Dam | Dam | 666 | Roger Mills | 35 36 12 N | 099 49 37 W |
| Upper Washita Site 57 Reservoir | Reservoir | 666 | Roger Mills | 35 36 12 N | 099 49 37 W |
| Kent Pence Dam | Dam | 530 | Harmon | 34 51 06 N | 099 49 37 W |
| Kent Pence Reservoir | Reservoir | 530 | Harmon | 34 51 06 N | 099 49 37 W |
| Red Bluff Creek | Stream | | Ellis | 36 00 22 N | 099 49 29 W |
| Dempsey Cemetery | Cemetery | 736 | Roger Mills | 35 31 24 N | 099 49 24 W |
| Dempsey | Populated Place | 726 | Roger Mills | 35 31 03 N | 099 49 22 W |
| Sunny Point Community Center | Building | 672 | Roger Mills | 35 27 55 N | 099 49 22 W |
| Grape Creek | Stream | | Greer | 34 57 39 N | 099 49 22 W |
| Township of Martin | Civil | 464 | Harmon | 34 34 10 N | 099 49 21 W |
| Dryden Church | Church | 518 | Harmon | 34 44 25 N | 099 49 20 W |
| Erick Gas Field | Oilfield | 604 | Beckham | 35 16 35 N | 099 49 11 W |
| Pleasant Valley Cemetery | Cemetery | 616 | Harper | 36 54 49 N | 099 49 05 W |
| Grand Cemetery | Cemetery | 653 | Ellis | 36 00 47 N | 099 49 05 W |
| Sunrise Cemetery | Cemetery | 657 | Roger Mills | 35 45 01 N | 099 49 04 W |
| Rose Hill Cemetery | Cemetery | 661 | Harper | 36 47 26 N | 099 49 02 W |
| Township of Jester | Civil | 539 | Greer | 34 58 40 N | 099 48 51 W |
| Upper Washita Site 59 Dam | Dam | 637 | Roger Mills | 35 36 54 N | 099 48 49 W |
| Upper Washita Site 59 Reservoir | Reservoir | 637 | Roger Mills | 35 36 54 N | 099 48 49 W |
| Gracie Chambers Dam | Dam | 554 | Harmon | 34 51 48 N | 099 48 49 W |
| Gracie Chambers Reservoir | Reservoir | 554 | Harmon | 34 51 48 N | 099 48 49 W |
| Upper Washita Site 43 Dam | Dam | 651 | Roger Mills | 35 45 06 N | 099 48 43 W |
| Upper Washita Site 43 Reservoir | Reservoir | 651 | Roger Mills | 35 45 06 N | 099 48 43 W |
| Canary Creek | Stream | | Harmon | 34 57 08 N | 099 48 37 W |
| Township of Francis | Civil | 559 | Harmon | 34 54 10 N | 099 48 31 W |
| Tri-County Turkey Creek Site 1a Dam | Dam | 496 | Harmon | 34 45 30 N | 099 48 31 W |