Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Gem Township Hall | Building | 395 | Brown | 45 24 06 N | 098 19 40 W |
| Gene Armstrong Landing Strip | Airport | 656 | Haakon | 44 17 45 N | 101 11 22 W |
| Gene Rock Dam | Dam | 639 | Potter | 45 13 24 N | 100 03 13 W |
| Gene Strain Ranch | Locale | 674 | Mellette | 43 32 12 N | 100 42 34 W |
| General Beadle State College | School | 515 | Lake | 44 00 46 N | 097 06 36 W |
| Genes Spray Strip | Airport | 482 | Aurora | 43 43 00 N | 098 35 01 W |
| Geneseo Township Hall | Building | 339 | Roberts | 45 22 15 N | 096 40 37 W |
| Geneva (historical) | Locale | 336 | Roberts | 45 24 10 N | 096 41 16 W |
| Geno Hunt Ranch | Locale | 568 | Ziebach | 44 45 05 N | 101 27 35 W |
| Gentle Annie Mine (historical) | Mine | 1628 | Lawrence | 44 21 30 N | 103 45 52 W |
| George Clark Dam | Dam | 758 | Perkins | 45 17 48 N | 102 26 14 W |
| George Erk Dam Number 1 | Dam | 883 | Butte | 45 01 36 N | 103 13 08 W |
| George Genoff Dam | Dam | 667 | Corson | 45 53 42 N | 101 29 25 W |
| George Hulm Dam | Dam | 753 | Perkins | 45 34 30 N | 102 16 56 W |
| George Jesfjeld Dam | Dam | 786 | Perkins | 45 42 48 N | 102 45 50 W |
| George Kjerstad Dam | Dam | 806 | Pennington | 44 02 54 N | 102 00 50 W |
| George Knapp Dam | Dam | 860 | Pennington | 43 56 06 N | 102 17 02 W |
| George Levin Dam Number 1 | Dam | 823 | Meade | 44 30 42 N | 102 58 20 W |
| George Merickson Dam Number 1 | Dam | 909 | Butte | 44 39 42 N | 103 44 02 W |
| George Turner Dam | Dam | 583 | Walworth | 45 27 36 N | 100 15 13 W |
| Gerald Martian Dam | Dam | 641 | Corson | 45 31 36 N | 100 53 02 W |
| Geranium Park | Flat | 1886 | Lawrence | 44 17 39 N | 104 01 20 W |
| Gerkin Lake | Reservoir | 431 | Faulk | 45 00 08 N | 098 56 27 W |
| Gerkin Refuge Number 1 Dam | Dam | 429 | Faulk | 45 00 12 N | 098 55 49 W |
| Gerkin Refuge Number 2 Dam | Dam | 433 | Faulk | 45 00 42 N | 098 56 01 W |
| Gerkin Refuge Number 3 Dam | Dam | 434 | Faulk | 45 00 06 N | 098 56 37 W |
| Gerkin State Wildlife Refuge | Park | 435 | Faulk | 45 00 21 N | 098 56 08 W |
| Gerlach School (historical) | School | 490 | Douglas | 43 26 35 N | 098 12 11 W |
| German Baptist Church | Church | 524 | Campbell | 45 44 40 N | 099 57 56 W |
| German Baptist Church | Church | 422 | Turner | 43 23 45 N | 096 57 54 W |
| German Baptist Church (historical) | Church | 550 | Campbell | 45 36 45 N | 099 45 31 W |
| German Baptist Church (historical) | Church | 531 | Campbell | 45 37 45 N | 099 52 56 W |
| German Catholic Church (historical) | Church | 517 | Campbell | 45 50 35 N | 100 05 31 W |
| German Cemetery | Cemetery | 396 | Brown | 45 24 03 N | 098 17 42 W |
| German Cemetery | Cemetery | 411 | Jerauld | 43 58 50 N | 098 24 06 W |
| German Congregational Church | Church | 589 | Campbell | 45 38 14 N | 100 12 50 W |
| German Evangelist Church (historical) | Church | 416 | Turner | 43 17 08 N | 097 17 48 W |
| German Lutheran Cemetery | Cemetery | 536 | Brule | 43 36 57 N | 099 12 53 W |
| German Lutheran Church (historical) | Church | 519 | Hamlin | 44 45 39 N | 097 04 02 W |
| German Lutheran Church (historical) | Church | 412 | Jerauld | 44 06 45 N | 098 24 48 W |
| German Methodist Church (historical) | Church | 394 | Jerauld | 44 59 45 N | 098 30 51 W |
| German Reform Cemetery | Cemetery | 484 | Charles Mix | 43 17 10 N | 098 27 41 W |
| Germania (historical) | Locale | 1646 | Lawrence | 44 15 20 N | 103 35 47 W |
| Germantown Church | Church | 433 | Turner | 43 25 02 N | 096 57 49 W |
| Germantown School | School | 427 | Turner | 43 25 02 N | 097 01 24 W |
| Gertie Mine | Mine | 1548 | Pennington | 43 55 24 N | 103 34 57 W |
| Gertonson Ranch | Locale | 635 | Jones | 44 08 59 N | 101 02 42 W |
| Gertson Slough | Lake | 513 | Hamlin | 44 33 09 N | 097 15 17 W |
| Gertson Slough State Public Shooting Area | Park | 513 | Hamlin | 44 33 34 N | 097 15 39 W |
| Gesinger Ranch | Locale | 707 | Dewey | 45 06 39 N | 100 55 08 W |
| Gethsemane Cemetery | Cemetery | 808 | Jackson | 43 34 23 N | 101 39 25 W |
| Gettys Canyon | Valley | | Custer | 43 46 56 N | 104 00 47 W |
| Gettysburg | Populated Place | 629 | Potter | 45 00 42 N | 099 57 20 W |
| Gettysburg Air Force Station (historical) | Military (Historical) | | Potter | 45 02 59 N | 099 57 23 W |
| Gettysburg Cemetery | Cemetery | 634 | Potter | 45 00 54 N | 099 55 13 W |
| Gettysburg Municipal Airport | Airport | 627 | Potter | 44 59 24 N | 099 57 07 W |
| Gettysburg Radar Station | Locale | 677 | Potter | 45 03 00 N | 099 57 23 W |
| Ghost Hawk Lake | Reservoir | 740 | Todd | 43 15 33 N | 100 54 25 W |
| Ghost Hawk Park | Locale | 731 | Todd | 43 15 47 N | 100 54 16 W |
| Giannonatti Creek | Stream | | Harding | 45 19 57 N | 103 15 25 W |
| Giant Mine | Mine | 1819 | Lawrence | 44 22 36 N | 104 02 59 W |
| Giant-Volney Mine | Mine | 1828 | Lawrence | 44 22 29 N | 104 02 55 W |
| Gibson Cemetery | Cemetery | 705 | Tripp | 43 03 51 N | 099 41 28 W |
| Gibson School | School | 339 | Union | 42 34 58 N | 096 31 36 W |
| Gibsons Pond | Lake | 297 | Roberts | 45 53 44 N | 096 34 46 W |
| Giddings Flat | Flat | 537 | Stanley | 44 24 37 N | 100 29 18 W |
| Giddings Post Office (historical) | Post Office | 507 | Hughes | 44 18 40 N | 099 48 22 W |
| Giedd School | School | 504 | Bon Homme | 43 03 13 N | 098 01 11 W |
| Gienger Cemetery | Cemetery | 616 | McPherson | 45 53 07 N | 099 04 23 W |
| Gifford Number 1 Dam | Dam | 715 | Mellette | 43 25 24 N | 100 32 55 W |
| Gifford Ranch | Locale | 709 | Mellette | 43 25 36 N | 100 33 44 W |
| Gilam Draw | Valley | | Meade | 44 21 31 N | 102 37 03 W |
| Gilbert (historical) | Locale | 490 | Aurora | 43 30 50 N | 098 38 26 W |
| Gilbert Draw | Valley | | Harding | 45 24 17 N | 103 48 44 W |
| Gilbert Number 1 Dam | Dam | 928 | Harding | 45 30 30 N | 103 37 50 W |
| Gilbert Number 2 Dam | Dam | 953 | Harding | 45 27 06 N | 103 38 50 W |
| Gilbert Number 3 Dam | Dam | 923 | Harding | 45 28 54 N | 103 34 26 W |
| Gilbert Number One Reservoir | Reservoir | 928 | Harding | 45 30 30 N | 103 37 50 W |
| Gilbert Number Two Reservoir | Reservoir | 953 | Harding | 45 27 06 N | 103 38 50 W |
| Gilbert Ranches Pond Number 1 Dam | Dam | 884 | Harding | 45 27 54 N | 102 57 56 W |
| Gilbert State Public Shooting Area | Park | 522 | Codington | 44 54 54 N | 097 24 01 W |
| Giles Creek | Stream | | Perkins | 45 48 41 N | 102 26 20 W |
| Gilger Ranch | Locale | 965 | Butte | 44 59 24 N | 103 57 38 W |
| Gill (historical) | Locale | 939 | Harding | 45 23 57 N | 103 07 02 W |
| Gillaspie Ranch | Locale | 611 | Stanley | 44 19 46 N | 101 06 25 W |
| Gillette Canyon | Valley | | Custer | 43 46 00 N | 104 03 41 W |
| Gillette Lateral | Canal | 877 | Butte | 44 43 11 N | 103 36 47 W |
| Gillette Prairie | Flat | 1963 | Pennington | 43 57 33 N | 103 44 57 W |
| Gillette Well | Well | 2027 | Pennington | 43 55 00 N | 103 50 36 W |
| Gillettes Ranch (historical) | Locale | 1903 | Pennington | 43 56 45 N | 103 43 37 W |
| Gilleys Grove | Woods | 592 | Brookings | 44 27 40 N | 096 32 26 W |
| Gilliland Roy Number 1 Dam | Dam | 602 | Mellette | 43 37 48 N | 100 17 37 W |
| Gillis Ranch | Locale | 1416 | Custer | 43 31 28 N | 103 36 35 W |
| Gillum Spring | Spring | 2071 | Pennington | 44 00 54 N | 103 57 05 W |
| Gilman Lake | Lake | 527 | Lake | 44 05 58 N | 097 20 48 W |
| Gilt Edge Mine | Mine | 1632 | Lawrence | 44 19 47 N | 103 40 29 W |
| Giltedge Mine | Mine | 1329 | Pennington | 43 53 02 N | 103 22 01 W |
| Gimlet Creek | Stream | | Pennington | 44 06 38 N | 103 38 44 W |
| Gingrass Draw | Valley | | Lawrence | 44 09 09 N | 103 32 13 W |
| Ginsbach School | School | 477 | Minnehaha | 43 41 18 N | 096 58 15 W |
| Gira and Ainsleys Dike Mine | Mine | 1968 | Custer | 43 51 00 N | 103 36 54 W |
| Giras Claim Mine | Mine | 1539 | Pennington | 43 55 37 N | 103 29 13 W |
| Girl Creek | Stream | | Ziebach | 44 48 36 N | 101 41 18 W |
| Gittings Ranch | Locale | 754 | Haakon | 44 24 59 N | 101 43 30 W |
| Glad Valley | Populated Place | 751 | Ziebach | 45 23 57 N | 101 46 40 W |
| Glad Valley Dam | Dam | 721 | Ziebach | 45 26 30 N | 101 47 18 W |
| Glad Valley Dam | Dam | 714 | Ziebach | 45 27 18 N | 101 47 13 W |
| Gladiator Mine (historical) | Mine | 1703 | Lawrence | 44 22 15 N | 103 47 34 W |
| Gladson Draw | Valley | | Butte | 45 06 23 N | 103 01 03 W |
| Gladys Feller Dam | Dam | 562 | Hughes | 44 18 12 N | 099 45 19 W |