Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Rocky Gap | Gap | 302 | Allegany | 39 41 58 N | 078 40 24 W |
| Rocky Gap Dam | Dam | 366 | Allegany | 39 42 06 N | 078 39 41 W |
| Rocky Gap Run | Stream | | Allegany | 39 42 21 N | 078 41 51 W |
| Rose Hill Cemetery | Cemetery | 244 | Allegany | 39 39 17 N | 078 46 34 W |
| Rose Meadow Cemetery | Cemetery | 612 | Allegany | 39 39 52 N | 078 52 48 W |
| Rush | Populated Place | 284 | Allegany | 39 39 49 N | 078 36 40 W |
| Rush Church | Church | 330 | Allegany | 39 39 33 N | 078 37 16 W |
| Sacred Heart Hospital | Hospital | 434 | Allegany | 39 39 19 N | 078 47 44 W |
| Sacred Heart Hospital Heliport | Airport | 419 | Allegany | 39 39 00 N | 078 47 59 W |
| Saint Gabriels Cemetery | Cemetery | 377 | Allegany | 39 31 21 N | 079 01 12 W |
| Saint Johns Episcopal Church | Church | 634 | Allegany | 39 39 20 N | 078 55 47 W |
| Saint Johns Evangelical Lutheran Church | Church | 210 | Allegany | 39 38 03 N | 078 45 45 W |
| Saint Josephs Roman Catholic Church | Church | 538 | Allegany | 39 35 35 N | 078 56 56 W |
| Saint Josephs School (historical) | School | 538 | Allegany | 39 35 35 N | 078 56 56 W |
| Saint Lukes Lutheran Church | Church | 242 | Allegany | 39 40 17 N | 078 44 47 W |
| Saint Marks United Church of Christ | Church | 201 | Allegany | 39 39 03 N | 078 45 24 W |
| Saint Mary Catholic Church | Church | 239 | Allegany | 39 38 22 N | 078 45 30 W |
| Saint Marys Cemetery | Cemetery | 496 | Allegany | 39 34 12 N | 078 58 06 W |
| Saint Marys Cemetery | Cemetery | 229 | Allegany | 39 36 11 N | 078 44 03 W |
| Saint Marys River Watershed Number 1 Dam | Dam | 19 | Allegany | 38 15 06 N | 076 32 05 W |
| Saint Marys School | School | 239 | Allegany | 39 38 22 N | 078 45 33 W |
| Saint Michael Catholic Church | Church | 629 | Allegany | 39 39 25 N | 078 55 39 W |
| Saint Michaels School | School | 628 | Allegany | 39 39 24 N | 078 55 38 W |
| Saint Patrick Church | Church | 165 | Allegany | 39 37 47 N | 078 23 25 W |
| Saint Patricks Cemetery | Cemetery | 170 | Allegany | 39 37 48 N | 078 23 27 W |
| Saint Patricks Roman Catholic Church | Church | 193 | Allegany | 39 39 20 N | 078 45 51 W |
| Saint Pauls Evangelical Lutheran Church | Church | 634 | Allegany | 39 39 28 N | 078 55 45 W |
| Saint Pauls Lutheran Church | Church | 215 | Allegany | 39 39 07 N | 078 46 05 W |
| Saint Peter and Pauls Roman Catholic Church | Church | 213 | Allegany | 39 39 09 N | 078 46 02 W |
| Saint Peter and Pauls School | School | 216 | Allegany | 39 39 09 N | 078 46 05 W |
| Saint Peters Catholic Church | Church | 279 | Allegany | 39 29 01 N | 079 02 37 W |
| Saints Peter and Paul Cemetery | Cemetery | 238 | Allegany | 39 39 17 N | 078 46 41 W |
| Salem United Church of Christ | Church | 630 | Allegany | 39 39 18 N | 078 55 51 W |
| Sand Spring | Building | | Allegany | 39 39 05 N | 078 56 15 W |
| Sand Spring Hill | Summit | 668 | Allegany | 39 39 51 N | 078 56 02 W |
| Sand Spring Run | Stream | | Allegany | 39 38 17 N | 078 56 00 W |
| Sandy Flat Hollow | Valley | | Allegany | 39 34 12 N | 078 27 05 W |
| Sawpit Run | Stream | | Allegany | 39 32 25 N | 078 32 32 W |
| Second Baptist Church | Church | 227 | Allegany | 39 38 18 N | 078 45 38 W |
| Seven Springs Run | Stream | | Allegany | 39 32 26 N | 078 36 19 W |
| Shaft United Methodist Church | Church | 545 | Allegany | 39 37 37 N | 078 56 29 W |
| Shanty Town (historical) | Populated Place | 189 | Allegany | 39 38 48 N | 078 45 47 W |
| Shriver Ridge | Ridge | 461 | Allegany | 39 43 38 N | 078 42 09 W |
| Shriver Ridge | Ridge | 445 | Allegany | 39 43 06 N | 078 42 38 W |
| Sideling Hill Creek | Stream | | Allegany | 39 38 17 N | 078 19 57 W |
| Sideling Hill Creek | Stream | 122 | Allegany | 39 38 17 N | 078 20 02 W |
| Sideling Hill Creek Aqueduct | Bridge | 125 | Allegany | 39 38 22 N | 078 20 03 W |
| Simpson Residence Hall | Building | 606 | Allegany | 39 39 06 N | 078 55 52 W |
| Sixmile House | Populated Place | 335 | Allegany | 39 38 17 N | 078 50 54 W |
| Slabtown | Populated Place | 446 | Allegany | 39 40 58 N | 078 53 11 W |
| Sorrell Ridge | Ridge | 288 | Allegany | 39 33 37 N | 078 28 03 W |
| South Cumberland | Populated Place | 212 | Allegany | 39 37 57 N | 078 45 21 W |
| South End Junior High School | School | 245 | Allegany | 39 38 17 N | 078 44 44 W |
| South End Playground | Park | 218 | Allegany | 39 38 08 N | 078 45 22 W |
| South Side Fire Station Number 2 | Building | 218 | Allegany | 39 38 09 N | 078 45 35 W |
| Southminster Presbyterian Church | Church | 212 | Allegany | 39 38 02 N | 078 45 38 W |
| Southside School | School | 220 | Allegany | 39 38 09 N | 078 45 31 W |
| Sowers Residence Hall | Building | 603 | Allegany | 39 39 04 N | 078 55 48 W |
| Spring Gap | Populated Place | 184 | Allegany | 39 33 55 N | 078 42 59 W |
| Spring Gap Campground | Locale | 179 | Allegany | 39 33 35 N | 078 42 24 W |
| Spring Gap Post Office | Post Office | 183 | Allegany | 39 33 52 N | 078 42 45 W |
| Spring Lick Hollow | Valley | | Allegany | 39 39 21 N | 078 23 47 W |
| Spruce Hollow | Valley | | Allegany | 39 37 53 N | 078 53 46 W |
| Squirrel Neck | Cape | 678 | Allegany | 39 36 24 N | 078 58 19 W |
| Squirrel Neck Run | Stream | | Allegany | 39 35 32 N | 078 56 59 W |
| Staub Run | Stream | | Allegany | 39 36 10 N | 078 56 42 W |
| Stickpile Tunnel | Tunnel | 228 | Allegany | 39 35 46 N | 078 25 39 W |
| Stoney Run Baptist Church | Church | 496 | Allegany | 39 29 52 N | 079 00 54 W |
| Stony Run | Stream | | Allegany | 39 28 05 N | 079 01 06 W |
| Stratford Ridge | Ridge | 291 | Allegany | 39 33 36 N | 078 33 43 W |
| Sugar Hollow | Valley | | Allegany | 39 36 00 N | 078 33 27 W |
| Sulphur Springs Cemetery | Cemetery | 223 | Allegany | 39 32 21 N | 078 28 32 W |
| Sulphur Springs United Methodist Church | Church | 177 | Allegany | 39 32 04 N | 078 28 40 W |
| Swain Hollow | Valley | | Allegany | 39 40 42 N | 078 20 29 W |
| Switch Number 9 | Locale | 529 | Allegany | 39 40 07 N | 078 54 21 W |
| Tawes Annex | Building | | Allegany | 39 39 03 N | 078 55 58 W |
| Tawes Hall | Building | | Allegany | 39 39 04 N | 078 55 58 W |
| Tawes Science Hall and Planetarium | Building | 588 | Allegany | 39 39 06 N | 078 56 07 W |
| Terrapin Run | Stream | | Allegany | 39 39 25 N | 078 25 49 W |
| The Church of Jesus Christ of Latter Day Saints | Church | 221 | Allegany | 39 39 42 N | 078 46 33 W |
| The Narrows | Gap | 198 | Allegany | 39 40 07 N | 078 47 06 W |
| Toms Hill | Summit | 531 | Allegany | 39 40 32 N | 078 35 01 W |
| Toms Hollow | Valley | | Allegany | 39 29 34 N | 078 56 19 W |
| Town Creek | Populated Place | 183 | Allegany | 39 31 32 N | 078 32 20 W |
| Town Creek | Stream | | Allegany | 39 31 33 N | 078 32 35 W |
| Town Creek (historical) | Populated Place | 211 | Allegany | 39 37 53 N | 078 33 54 W |
| Town Creek Aqueduct | Bridge | 161 | Allegany | 39 31 23 N | 078 32 39 W |
| Town Creek Aqueduct Campground | Locale | 161 | Allegany | 39 31 29 N | 078 32 54 W |
| Town Hill | Range | 467 | Allegany | 39 43 29 N | 078 22 44 W |
| Trading Run | Stream | | Allegany | 39 33 30 N | 078 37 04 W |
| Trinity Evangelical Lutheran Church | Church | 192 | Allegany | 39 39 23 N | 078 46 03 W |
| Trinity United Methodist Church | Church | 218 | Allegany | 39 38 12 N | 078 45 38 W |
| Triple Lakes | Populated Place | 230 | Allegany | 39 34 52 N | 078 50 48 W |
| Tunnel Hollow | Valley | | Allegany | 39 34 09 N | 078 27 02 W |
| Twenty-First Bridge | Bridge | 245 | Allegany | 39 27 06 N | 078 57 40 W |
| Twiggtown | Populated Place | 363 | Allegany | 39 38 22 N | 078 39 20 W |
| Twigs Hollow | Valley | | Allegany | 39 32 25 N | 078 30 01 W |
| Union Grove Cemetery | Cemetery | 238 | Allegany | 39 42 12 N | 078 41 58 W |
| Upper Potomac Industrial Park | Locale | 193 | Allegany | 39 37 55 N | 078 48 00 W |
| Vale Run | Stream | | Allegany | 39 36 57 N | 078 56 21 W |
| Vale Summit | Populated Place | 619 | Allegany | 39 37 07 N | 078 54 22 W |
| Vale Summit Church | Church | 607 | Allegany | 39 37 12 N | 078 54 03 W |
| Veterans of Foreign Wars Burial Park | Cemetery | 191 | Allegany | 39 32 34 N | 078 36 40 W |
| Virginia Avenue Public School (historical) | School | 213 | Allegany | 39 38 13 N | 078 45 46 W |
| WALI-AM (Cumberland) | Tower | 261 | Allegany | 39 38 36 N | 078 44 34 W |
| Walnut Ridge | Ridge | 290 | Allegany | 39 34 58 N | 078 40 06 W |
| Warner Cemetery | Cemetery | 782 | Allegany | 39 36 18 N | 078 54 06 W |
| Warrior Mountain | Summit | 650 | Allegany | 39 37 11 N | 078 37 11 W |
| Warrior Mountain State Wildlife Management Area | Park | 478 | Allegany | 39 36 36 N | 078 38 14 W |
| Warrior Run | Stream | | Allegany | 39 36 01 N | 078 48 42 W |