List of islands of Montana explained

There are at least 115 named Islands in Montana. These islands occur in rivers, lakes and reservoirs.

Islands east of the Continental Divide

• Archers Island, Chouteau County, Montana, 47.9442°N -110.4378°W, el. 2562feet^[1]
• Baker Bar, Chouteau County, Montana, 47.8389°N -110.6206°W, el. 2615feet^[2]
• Boggs Island, Chouteau County, Montana, 48.0133°N -110.2739°W, el. 2513feet^[3]
• Brule Bar, Chouteau County, Montana, 47.8789°N -110.5028°W, el. 2569feet^[4]
• Buckshot Island, Cascade County, Montana, 47.4314°N -111.3556°W, el. 3323feet^[5]
• Chelsea Island, Roosevelt County, Montana, 48.1144°N -105.3353°W, el. 1972feet^[6]
• Council Island, Chouteau County, Montana, 47.7347°N -109.6125°W, el. 2408feet^[7]
• Cow Island, Blaine County, Montana, 47.7722°N -108.9478°W, el. 2293feet^[8]
• Crow Coulee Bar, Chouteau County, Montana, 47.9872°N -110.3297°W, el. 2529feet^[9]
• Duck Island, Valley County, Montana, 48.0497°N -106.4144°W, el. 2044feet^[10]
• Evans Bend, Chouteau County, Montana, 47.8522°N -110.5744°W, el. 2608feet^[11]
• Fisher Island, Cascade County, Montana, 47.4097°N -111.3069°W, el. 3333feet^[12]
• Grand Island, Phillips County, Montana, 47.6975°N -108.8025°W, el. 2316feet^[13]
• Holmes Council Islands, Fergus County, Montana, 47.7439°N -109.5542°W, el. 2398feet^[14]
• Iron City Islands, Fergus County, Montana, 47.7456°N -109.5206°W, el. 2388feet^[15]
• Jones Island, Phillips County, Montana, 47.6236°N -108.5972°W, el. 2251feet^[16]
• King Island, Fergus County, Montana, 47.6189°N -108.6475°W, el. 2260feet^[17]
• Lower Two Calf Island, Phillips County, Montana, 47.6458°N -108.7628°W, el. 2277feet^[18]
• Nelson Island, Cascade County, Montana, 47.3439°N -111.5869°W, el. 3350feet^[19]
• PN Island, Fergus County, Montana, 47.7367°N -109.6381°W, el. 2408feet^[20]
• Park Island, Cascade County, Montana, 47.4836°N -111.3147°W, el. 3317feet^[21]
• Pine Island, Cascade County, Montana, 47.1811°N -111.8092°W, el. 3379feet^[22]
• Pablo Island, Chouteau County, Montana, 47.7619°N -109.9144°W, el. 2467feet^[23]
• Roosevelt Island, Chouteau County, Montana, 47.8044°N -110.6897°W, el. 2628feet^[24]
• Sacajawea Island, Cascade County, Montana, 47.5186°N -111.305°W, el. 3314feet^[25]
• Scout Island, Valley County, Montana, 48.0339°N -106.425°W, el. 2057feet^[26]
• Shonkin Bar, Chouteau County, Montana, 47.845°N -110.6011°W, el. 2615feet^[27]
• Skinners Island, Roosevelt County, Montana, 48.0922°N -105.1156°W, el. 1952feet^[28]
• Steamboat Island, Cascade County, Montana, 47.5297°N -111.2408°W, el. 3251feet^[29]
• Sturgeon Island, Blaine County, Montana, 47.7989°N -109.0839°W, el. 2352feet^[30]
• Taylor Island, Cascade County, Montana, 47.4686°N -111.3169°W, el. 3323feet^[31]
• Three Islands, Chouteau County, Montana, 47.97°N -110.3692°W, el. 2546feet^[32]
• Upper Two Calf Island, Phillips County, Montana, 47.6564°N -108.7828°W, el. 2310feet^[33]
• White Shield Island, Roosevelt County, Montana, 48.0842°N -105.0608°W, el. 1942feet^[34]
• Wolf Island, Chouteau County, Montana, 47.7397°N -109.8778°W, el. 2447feet^[35]
• Yorks Islands, Broadwater County, Montana, 46.2625°N -111.4911°W, el. 3855feet^[36]

• Beaver Island, Richland County, Montana, 47.4347°N -104.3367°W, el. 1965feet^[37]
• Big Marys Island, Yellowstone County, Montana, 46.0064°N -107.9297°W, el. 2854feet^[38]
• Breakneck Island, Richland County, Montana, 47.4464°N -104.3114°W, el. 1946feet^[39]
• Buella Island, Richland County, Montana, 47.6064°N -104.195°W, el. 1913feet^[40]
• Cherry Island, Yellowstone County, Montana, 45.8167°N -108.4481°W, el. 3081feet^[41]
• Chrome Island, Wibaux County, Montana, 47.3453°N -104.4111°W, el. 1985feet^[42]
• Crittenden Island, Richland County, Montana, 47.4875°N -104.2839°W, el. 1932feet^[43]
• Devils Island, Richland County, Montana, 47.4411°N -104.3339°W, el. 1946feet^[44]
• Diamond Island, Richland County, Montana, 47.5936°N -104.2158°W, el. 1909feet^[45]
• Dovers Island, Yellowstone County, Montana, 45.8567°N -108.3919°W, el. 3045feet^[46]
• Duck Island, Richland County, Montana, 47.4156°N -104.3431°W, el. 1968feet^[47]
• Elk Island, Richland County, Montana, 47.4703°N -104.3061°W, el. 1942feet^[48]
• Elms Island, Richland County, Montana, 47.4036°N -104.3519°W, el. 1952feet^[49]
• Government Island, Yellowstone County, Montana, 46.1569°N -107.4781°W, el. 2703feet^[50]
• Gros Ventre Island, Richland County, Montana, 47.3772°N -104.3953°W, el. 1955feet^[51]
• Idiom Island, Richland County, Montana, 47.3631°N -104.3997°W, el. 1972feet^[52]
• Howery Island, Treasure County, Montana, 46.2472°N -107.3672°W, el. 2664feet^[53]
• Joes Island, Dawson County, Montana, 47.2689°N -104.5317°W, el. 2018feet^[54]
• Livingston Island, Park County, Montana, 45.6606°N -110.5453°W, el. 4478feet^[55]
• Marys Island, Richland County, Montana, 47.3858°N -104.3694°W, el. 1975feet^[56]
• Monroe Island, Dawson County, Montana, 46.9722°N -104.7894°W, el. 2083feet^[57]
• Pirogue Island, Custer County, Montana, 46.4406°N -105.8172°W, el. 2349feet^[58]
• Randalls Island, Yellowstone County, Montana, 46.0333°N -107.8525°W, el. 2825feet^[59]
• Schaffer Island, Dawson County, Montana, 47.2319°N -104.6297°W, el. 2011feet^[60]
• Seven Sisters Island, Richland County, Montana, 47.5617°N -104.2444°W, el. 1903feet^[61]
• Siebeck Island, Park County, Montana, 45.6411°N -110.5642°W, el. 4505feet^[62]
• Snake Island, Richland County, Montana, 47.3528°N -104.4117°W, el. 1985feet^[63]
• Spraklin Island, Yellowstone County, Montana, 45.9203°N -108.3083°W, el. 2995feet^[64]
• Westover Island, Carbon County, Montana, 45.5847°N -109.0778°W, el. 3451feet^[65]

Other waters east of the divide

• Big Island, Sheridan County, Montana, 48.4472°N -104.3833°W, el. 1942feet^[66] in Medicine Lake
• Bruces Island, Sheridan County, Montana, 48.4739°N -104.4514°W, el. 1946feet^[67] in Medicine Lake
• Far West Island, Big Horn County, Montana, 45.6344°N -107.6672°W, el. 2943feet^[68] in the Big Horn River
• Fire Island, Sweet Grass County, Montana, 45.8211°N -109.9494°W, el. 4104feet^[69] in the Boulder River
• Gull Island, Sheridan County, Montana, 48.4586°N -104.3919°W, el. 1936feet^[70] in Medicine Lake
• Long Island, Phillips County, Montana, 48.4231°N -107.6961°W, el. 2211feet^[71] in Lake Bowdoin
• Lovell Island, Beaverhead County, Montana, 45.2006°N -112.6811°W, el. 5138feet^[72] in the Beaverhead River
• Pelican Islands, Phillips County, Montana, 48.4117°N -107.6772°W, el. 2211feet^[73] in Lake Bowdoin
• Smith Island, Beaverhead County, Montana, 45.2056°N -112.6781°W, el. 5125feet^[74] in the Beaverhead River
• The Island, Carter County, Montana, 45.3861°N -104.0683°W, el. 3199feet^[75] in the Little Missouri River
• Thunderbird Island, Glacier County, Montana, 48.7897°N -113.4142°W, el. 4488feet^[76] in Saint Mary Lake
• Youngs Island, Sheridan County, Montana, 48.4636°N -104.4464°W, el. 1949feet^[77] in Medicine Lake
• Wild Goose Island, Glacier County, Montana, 48.6889°N -113.5397°W, el. 4488feet^[78] in Saint Mary Lake
• Woody Island, Phillips County, Montana, 48.405°N -107.6825°W, el. 2215feet^[79] in Lake Bowdoin
• York Island, Garfield County, Montana, 47.93°N -106.4661°W, el. 2333feet^[80] in Fort Peck Lake

Islands west of the Continental Divide

• Bird Island, Lake County, Montana, 47.7997°N -114.0792°W, el. 2943feet^[81]
• Bull Island, Lake County, Montana, 47.7706°N -114.1161°W, el. 2999feet^[82]
• Cedar Island, Lake County, Montana, 47.8958°N -114.1661°W, el. 2940feet^[83]
• Cromwell Island, Lake County, Montana, 47.8503°N -114.2636°W, el. 3136feet^[84]
• Douglas Islands, Lake County, Montana, 47.9336°N -114.1683°W, el. 2897feet^[85]
• Dream Island, Lake County, Montana, 47.8119°N -114.2306°W, el. 2930feet^[86]
• Goose Island, Lake County, Montana, 47.9486°N -114.1778°W, el. 2897feet^[87]
• Invitation Island, Flathead County, Montana, 48.0708°N -114.2169°W, el. 2897feet^[88]
• Melita Island, Lake County, Montana, 47.8214°N -114.2356°W, el. 2936feet^[89]
• Little Bull Island, Lake County, Montana, 47.7681°N -114.125°W, el. 2963feet^[90]
• Mary B Island, Lake County, Montana, 47.9253°N -114.1689°W, el. 2897feet^[91]
• Rock Island, Lake County, Montana, 47.8947°N -114.1714°W, el. 2910feet^[92]
• Shelter Island, Lake County, Montana, 47.8956°N -114.1742°W, el. 2943feet^[93]
• Wild Horse Island, Lake County, Montana, 47.8453°N -114.215°W, el. 3494feet^[94]

Hungry Horse Reservoir

• Clayton Island, Flathead County, Montana, 48.2397°N -113.8361°W, el. 3642feet^[95]
• Elk Island, Flathead County, Montana, 48.2403°N -113.7981°W, el. 3596feet^[96]
• Fire Island, Flathead County, Montana, 48.2953°N -113.8969°W, el. 3602feet^[97]
• Kelly Island, Flathead County, Montana, 48.2653°N -113.8217°W, el. 3602feet^[98]
• Lost Island, Flathead County, Montana, 48.2022°N -113.7661°W, el. 3606feet^[99]

Lake Koocanusa

• Cedar Island, Lincoln County, Montana, 48.6353°N -115.2967°W, el. 2464feet^[100]
• Kins Island, Lincoln County, Montana, 48.895°N -115.1956°W, el. 2464feet^[101]
• Murray Island, Lincoln County, Montana, 48.9031°N -115.1931°W, el. 2464feet^[102]
• Whites Island, Lincoln County, Montana, 48.9464°N -115.1672°W, el. 2464feet^[103]
• Yarnell Island, Lincoln County, Montana, 48.4583°N -115.2961°W, el. 2533feet^[104]

Other waters west of the divide

• Deer Island, Flathead County, Montana, 48.1178°N -114.0331°W, el. 3048feet^[105] in Echo Lake
• Callows Island, Lincoln County, Montana, 48.255°N -115.8525°W, el. 2402feet^[106] in Bull Lake
• Firemens Island, Flathead County, Montana, 48.1347°N -114.0564°W, el. 3012feet^[107] in Echo Lake
• Kelly Island, Missoula County, Montana, 46.8639°N -114.1075°W, el. 3113feet^[108] in the Clark Fork River
• Pleasant Island, Flathead County, Montana, 48.1664°N -114.3561°W, el. 3343feet^[109] in Foy Lake
• Rock Island, Sanders County, Montana, 47.9406°N -115.7122°W, el. 2336feet^[110] in Noxon Reservoir
• Scott Island, Lincoln County, Montana, 48.48°N -115.8975°W, el. 1857feet^[111] in the Kootenai River
• Sourdough Island, Missoula County, Montana, 47.1042°N -113.4108°W, el. 3930feet^[112] in Salmon Lake (Montana)
• Steamboat Island, Sanders County, Montana, 47.5839°N -115.3278°W, el. 2405feet^[113] in the Clark Fork River
• The Island, Flathead County, Montana, 48.4361°N -114.3806°W, el. 2999feet^[114] in Whitefish Lake

Notes and References

1. 768328 . Archers Island .
2. 768454 . Baker Bar .
3. 769082 . Boggs Island .
4. 769302 . Brule Bar .
5. 769327 . Buckshot Island .
6. 769776 . Chelsea Island .
7. 770204 . Council Island .
8. 770231 . Cow Island .
9. 770336 . Crow Coulee Bar .
10. 770876 . Duck Island .
11. 771254. Evans Bend.
12. 771397 . Fisher Island .
13. 771905 . Grand Island .
14. 772482 . Holmes Council Islands .
15. 772724 . Iron City Islands .
16. 772896 . Jones Island .
17. 773046 . King Island .
18. 773744 . Lower Two Calf Island .
19. 774580 . Nelson Island .
20. 775022 . PN Island .
21. 775085 . Park Island .
22. 2043478 . Pine Island .
23. 775045 . Pablo Island .
24. 775929 . Roosevelt Island .
25. 767905 . Sacajawea Island .
26. 776310 . Scout Island .
27. 776498 . Shonkin Bar .
28. 776613 . Skinners Island .
29. 777177 . Steamboat Island .
30. 777280 . Sturgeon Island .
31. 777436 . Taylor Island .
32. 777605 . Three Islands .
33. 777944 . Upper Two Calf Island .
34. 793214 . White Shield Island .
35. 778648 . Wolf Island .
36. 1853836 . Yorks Islands .
37. 1714954 . Beaver Island .
38. 768804 . Big Marys Island .
39. 1715258 . Breakneck Island .
40. 1715256 . Buella Island .
41. 769794 . Cherry Island .
42. 1696595 . Chrome Island .
43. 770303 . Crittenden Island .
44. 1714955 . Devils Island .
45. 1714950 . Diamond Island .
46. 770734 . Dovers Island .
47. 1714953 . Duck Island .
48. 771193 . Elk Island .
49. 1714952 . Elms Island .
50. 771887 . Government Island .
51. 1696627 . Gros Ventre Island .
52. 1696597 . Idiom Island .
53. 1721587 . Howery Island .
54. 1715613 . Joes Island .
55. 773512 . Livingston Island .
56. 773913 . Marys Island .
57. 1715606 . Monroe Island .
58. 1721469 . Pirogue Island .
59. 775555 . Randalls Island .
60. 1715609 . Schaffer Island .
61. 776351 . Seven Sisters Island .
62. 776536 . Siebeck Island .
63. 1696596 . Snake Island .
64. 776948 . Spraklin Island .
65. 778328 . Westover Island .
66. 768797 . Big Island .
67. 769301 . Bruces Island .
68. 1716291 . Far West Island .
69. 771369 . Fire Island .
70. 772024 . Gull Island .
71. 800188 . Long Island .
72. 773719 . Lovell Island .
73. 800187 . Pelican Islands .
74. 776677 . Smith Island .
75. 799602 . The Island .
76. 777627 . Thunderbird Island .
77. 778750 . Youngs Island .
78. 778465. Wild Goose Island.
79. 800186 . Woody Island .
80. 778740 . York Island .
81. 768882 . Bird Island .
82. 769375 . Bull Island .
83. 781110 . Cedar Island .
84. 770310 . Cromwell Island .
85. 782514 . Douglas Islands .
86. 770746 . Dream Island .
87. 784112 . Goose Island .
88. 2582468 . Invitation Island .
89. 774091 . Melita Island .
90. 773421 . Little Bull Island .
91. 786903 . Mary B Island .
92. 789699 . Rock Island .
93. 790393 . Shelter Island .
94. 778471 . Wild Horse Island .
95. 794223 . Clayton Island .
96. 794224 . Elk Island .
97. 794217 . Fire Island .
98. 794206 . Kelly Island .
99. 794225 . Lost Island .
100. 781111 . Cedar Island .
101. 806301 . Kins Island .
102. 806306 . Murray Island .
103. 806315 . Whites Island .
104. 1782409 . Yarnell Island .
105. 782257 . Deer Island .
106. 780793 . Callows Island .
107. 1796094 . Firemens Island .
108. 785662 . Kelly Island .
109. 788989 . Pleasant Island .
110. 789700 . Rock Island .
111. 790157 . Scott Island .
112. 790865 . Sourdough Island .
113. 793652 . Steamboat Island .
114. 792039 . The Island .