There are at least 53 named mountains in Sweet Grass County, Montana.
- Antelope Butte, 45°43′35″N 110°05′08″W, el. 5,151 feet (1,570 m)[1]
- Battleship Butte, 46°05′41″N 110°06′27″W, el. 6,066 feet (1,849 m)[2]
- Big Timber Peak, 46°01′28″N 110°15′42″W, el. 10,764 feet (3,281 m)[3]
- Black Butte, 45°40′13″N 109°59′44″W, el. 6,119 feet (1,865 m)[4]
- Black Butte, 46°03′46″N 110°10′26″W, el. 7,677 feet (2,340 m)[5]
- Boone Mountain, 45°31′31″N 110°02′46″W, el. 8,943 feet (2,726 m)[6]
- Breakneck Mountain, 45°20′33″N 110°09′21″W, el. 10,170 feet (3,100 m)[7]
- Breakneck Plateau, 45°21′56″N 110°09′13″W, el. 9,314 feet (2,839 m)[8]
- Castle Butte, 45°38′41″N 110°02′10″W, el. 6,286 feet (1,916 m)[9]
- Chalice Peak, 45°18′44″N 110°04′28″W, el. 11,037 feet (3,364 m)[10]
- Choo-heh-meen Hills, 45°49′29″N 109°40′41″W, el. 5,043 feet (1,537 m)[11]
- Chrome Mountain, 45°26′27″N 110°08′23″W, el. 10,138 feet (3,090 m)[12]
- Columbine Peak, 45°14′03″N 110°09′04″W, el. 8,350 feet (2,550 m)[13]
- Contact Mountain, 45°28′08″N 110°08′17″W, el. 9,944 feet (3,031 m)[14]
- Crazy Peak, 46°01′05″N 110°16′36″W, el. 11,178 feet (3,407 m)[15]
- Derby Mountain, 45°35′00″N 109°52′49″W, el. 7,027 feet (2,142 m)[16]
- Elk Mountain, 45°32′57″N 110°01′04″W, el. 8,376 feet (2,553 m)[17]
- Ellis Mountain, 45°34′44″N 109°56′52″W, el. 7,451 feet (2,271 m)[18]
- Enos Mountain, 45°34′07″N 110°03′01″W, el. 7,401 feet (2,256 m)[19]
- Evergreen Mountain, 45°35′59″N 109°58′06″W, el. 7,139 feet (2,176 m)[20]
- Fairview Peak, 45°57′23″N 110°16′40″W, el. 10,167 feet (3,099 m)[21]
- Gold Hill, 45°36′06″N 109°56′28″W, el. 6,234 feet (1,900 m)[22]
- Hawley Mountain, 45°20′17″N 110°11′23″W, el. 10,092 feet (3,076 m)[23]
- Haystack Peak, 45°11′47″N 110°12′25″W, el. 10,233 feet (3,119 m)[24]
- Hicks Mountain, 45°32′44″N 109°52′57″W, el. 7,438 feet (2,267 m)[25]
- Hicks Peak, 45°17′37″N 110°12′05″W, el. 9,803 feet (2,988 m)[26]
- Independence Peak, 45°12′43″N 110°13′21″W, el. 9,885 feet (3,013 m)[27]
- Iron Mountain, 45°24′16″N 110°03′49″W, el. 10,026 feet (3,056 m)[28]
- Iron Mountain, 45°36′38″N 109°56′04″W, el. 6,857 feet (2,090 m)[29]
- Jordan Mountain, 45°14′48″N 110°04′03″W, el. 10,102 feet (3,079 m)[30]
- Kid Royal Mountain, 45°55′46″N 110°13′45″W, el. 6,893 feet (2,101 m)[31]
- Knob Hill, 46°00′14″N 109°27′51″W, el. 4,534 feet (1,382 m)[32]
- Lake Mountain, 45°17′25″N 110°06′43″W, el. 10,689 feet (3,258 m)[33]
- Lone Indian Butte, 45°51′41″N 109°39′10″W, el. 5,174 feet (1,577 m)[34]
- Meyer Mountain, 45°28′33″N 109°58′26″W, el. 8,248 feet (2,514 m)[35]
- Monument Peak, 45°11′47″N 110°13′21″W, el. 10,846 feet (3,306 m)[36]
- Morning Star Peak, 45°30′59″N 110°02′34″W, el. 9,255 feet (2,821 m)[37]
- Mount Douglas, 45°18′24″N 110°08′23″W, el. 11,283 feet (3,439 m)[38]
- Packsaddle Butte, 45°38′07″N 109°51′24″W, el. 5,902 feet (1,799 m)[39]
- Piano Hill, 45°43′21″N 109°55′50″W, el. 4,974 feet (1,516 m)[40]
- Picket Pin Mountain, 45°27′00″N 110°03′04″W, el. 9,977 feet (3,041 m)[41]
- Pinnacle Mountain, 45°11′47″N 110°06′07″W, el. 10,666 feet (3,251 m)[42]
- Porcupine Butte, 46°10′45″N 110°04′22″W, el. 7,011 feet (2,137 m)[43]
- Raspberry Butte, 45°58′33″N 110°10′07″W, el. 6,653 feet (2,028 m)[44]
- Red Mountain, 45°38′16″N 109°58′16″W, el. 5,978 feet (1,822 m)[45]
- Sliderock Mountain, 45°35′10″N 109°56′59″W, el. 7,506 feet (2,288 m)[46]
- Snowy Peak, 45°19′05″N 110°08′31″W, el. 9,623 feet (2,933 m)[47]
- Stephens Hill, 45°50′40″N 109°34′24″W, el. 4,928 feet (1,502 m)[48]
- Sugarloaf Mountain, 45°31′58″N 109°55′56″W, el. 7,946 feet (2,422 m)[49]
- Tepee Mountain, 45°31′01″N 110°11′00″W, el. 8,117 feet (2,474 m)[50]
- Timberline Mountain, 45°10′45″N 110°03′45″W, el. 10,253 feet (3,125 m)[51]
- Washburn Mountain, 45°29′48″N 109°57′44″W, el. 8,353 feet (2,546 m)[52]
- Wheeler Butte, 46°02′30″N 109°58′03″W, el. 4,961 feet (1,512 m)[53]