SUMMITSTEEPNESS
RankMax at 800mAzimuth Drop (in feet)NameCountyElevation
1 45.80058645 131 2698.37 Heyburn Mountain Custer 10220
2 45.08113323 8 2631.44 Breitenbach, Mount Custer 12140
3 44.65081625 349 2592.21 Horstmann Peak Custer 10470
4 43.7950922 20 2515.89 Old Hyndman Peak Blaine + Custer 11775
5 43.78724069 236 2515.20 9807 Boise 9807
6 43.38458965 204 2480.06 Grandjean Peak Boise 9180
7 43.13374077 220 2458.40 9900 A Boise + Custer 9900
8 42.53609014 139 2407.50 9682 Custer 9682
9 42.49768498 107 2404.26 Borah Peak Custer 12662
10 42.27126461 150 2385.25 9980 E Boise + Custer 9980
11 42.23528366 237 2382.24 9180 Boise 9180
42.15052354 7 2375.17 North Lost River Peak Custer 12020
12 42.02307867 97 2364.57 6740 D Valley 6740
13 42.01809622 304 2364.16 Far Away Mountain Custer 11930
14 41.82663053 157 2348.32 8820 B Boise 8820
15 41.62650651 338 2331.87 5548 Lemhi 5548
16 41.60992664 351 2330.51 Scotchman Peak Bonner 7009
17 41.363052 53 2310.36 Snowy Top Boundary 7572
18 41.21020154 215 2297.96 Tohobit Peak Boise 10046
41.18725943 54 2296.11 10860 B Custer 10860
19 41.15215433 238 2293.27 Devils Bedstead East Custer 11865
41.08527422 97 2287.87 North Borah Peak Custer 12247
20 40.96573704 310 2278.25 8500 E Idaho 8500
21 40.94600868 83 2276.67 5140 Idaho 5140
22 40.86811663 240 2270.43 Warbonnet Peak Boise 10220
23 40.82528992 354 2267.00 8100 E Boise 8100
24 40.77386332 51 2262.89 Castle Peak A Custer 11815
25 40.72989405 294 2259.38 Ferguson Peak Custer 11509
26 40.63942164 157 2252.17 Donaldson Peak Custer 12023
27 40.26662978 63 2222.69 Devils Bedstead, The Blaine + Custer 11051
28 40.24405469 339 2220.91 Freeman Peak A Lemhi 10272
29 40.22604039 295 2219.50 Copperhead Peak Lemhi 10060
30 40.22196449 318 2219.18 Leatherman Peak Custer 12228
40.19020056 227 2216.68 9100 G Boise 9100
31 40.08704797 145 2208.60 7042 C Valley 7042
40.07742082 218 2207.85 8820 D Lemhi 8820
32 40.02329465 34 2203.62 4444 Idaho 4444
33 40.01437906 176 2202.92 9635 Elmore 9635
34 39.93322667 346 2196.59 Diamond Peak A Butte 12197
39.92241134 327 2195.75 Shadow Lake Peak Custer 11401
35 39.86540504 231 2191.31 9627 B Boise 9627
36 39.84833918 283 2189.99 5844 Idaho 5844
37 39.77257143 295 2184.11 Grand Mogul Custer 9733
39.72912865 305 2180.74 Skunk Camp Lookout Lemhi 7229
38 39.65968711 227 2175.37 9082 Boise 9082
39 39.65469373 187 2174.98 Mount Church Custer 12220
40 39.60426581 323 2171.09 Calkens Peak Custer 11500
41 39.52318056 148 2164.84 Triple Peak Custer 11300
42 39.43618194 196 2158.15 9780 B Boise 9780
39.40996001 149 2156.14 Isabella Point Clearwater 6073
43 39.35547382 7 2151.97 10390 Beaverhead + Lemhi 10390
44 39.35149064 282 2151.66 Mount Idaho Custer 12065
45 39.33656826 136 2150.52 9727 B Boise + Custer 9727
39.24258939 22 2143.33 Clark County HP Clark 11220
46 39.23160954 17 2142.49 Panther Benchmark Lemhi 6443
47 39.22753356 43 2142.18 Little Diamond Peak Butte 11272
48 39.17013004 56 2137.81 Howard Peak Custer 11020
49 39.11533157 122 2133.63 11100 A Custer 11100
50 39.10317228 46 2132.71 8785 Idaho + Ravalli 8785
51 38.89710579 248 2117.08 9765 Boise 9765
52 38.8700519 339 2115.04 Goat Mountain B Lemhi 9607
53 38.84732224 85 2113.32 8479 Idaho 8479
54 38.80209644 345 2109.91 9211 B Boise 9211
55 38.62576806 24 2096.64 10940 A Custer 10940
56 38.57404525 73 2092.77 Mount Corruption Custer 11857
57 38.55251935 58 2091.15 Merriam Peak Custer 10920
58 38.47373043 82 2085.26 Hyndman Peak Blaine + Custer 12009
38.45163515 94 2083.61 The Sweater Butte 10550
59 38.42409314 265 2081.55 10079 Custer 10079
60 38.40289009 66 2079.97 11020 Custer 11020
61 38.32512277 309 2074.18 North Twin Butte 11081
38.31505385 280 2073.43 Chinese Wall Custer 11238
62 38.25546507 296 2069.00 Cobb Peak Blaine 11650
63 38.21892416 59 2066.29 Al West Peak Custer 11310
38.19215363 64 2064.30 Haley Ridge Adams 5747
64 38.1494444 342 2061.14 9561 B Custer 9561
65 38.12186725 141 2059.10 8628 Idaho + Ravalli 8628
66 38.11638898 174 2058.69 6921 A Lemhi 6921
38.09431195 286 2057.06 11500 Custer 11500
67 38.07686588 268 2055.77 Pegasus Peak Custer 11736
68 38.01175748 164 2050.96 8540 Idaho + Ravalli 8540
69 37.98749286 340 2049.17 Saddle Mountain B Idaho 8258
70 37.98721719 23 2049.15 7889 Valley 7889
71 37.98460203 355 2048.96 Twin Peaks East C Clearwater 5903
72 37.98357608 231 2048.88 Bad Rock Peak Custer 11953
73 37.9559456 283 2046.85 South Loon Mountain Valley 9287
74 37.94499044 265 2046.04 9327 Lemhi 9327
75 37.93410227 20 2045.24 Ross Peak Custer 11724
76 37.92488014 166 2044.56 8289 Valley 8289
77 37.90677305 264 2043.23 McGown Peak Custer 9860
78 37.90083295 316 2042.79 Doublespring Peak Custer 11611
79 37.89036204 167 2042.02 9110 Boise 9110
80 37.87568317 287 2040.94 10460 D Custer 10460
81 37.85705245 218 2039.57 Elk Peak Boise + Custer 10582
37.85258694 75 2039.24 No Regret Peak Custer 11972
82 37.83708067 77 2038.10 Mountaineer Peak Custer 11828
83 37.80485914 293 2035.74 Standhope Peak Custer 11878
37.79411072 228 2034.95 8860 H Boise 8860
84 37.77242154 28 2033.36 White Cap Peak Custer 11899
37.74749884 357 2031.53 7718 Idaho 7718
85 37.69068264 292 2027.38 McCaleb Benchmark Custer 11982
86 37.64316757 19 2023.90 11781 Custer 11781
87 37.5987747 62 2020.66 Sacagawea Peak Custer 11936
88 37.59082529 66 2020.08 The Riddler Butte 11580
89 37.58368505 241 2019.56 8314 Idaho + Ravalli 8314
90 37.52078921 175 2014.98 Regan, Mount Boise 10190
91 37.49574882 105 2013.16 Scott Peak Lemhi 11393
92 37.45869968 32 2010.46 9980 G Custer 9980
93 37.44418434 240 2009.41 8523 Idaho + Ravalli 8523
94 37.43707698 52 2008.89 10300 Custer 10300
95 37.39732056 98 2006.01 9660 D Elmore 9660
96 37.39296197 312 2005.69 Bell Mountain A Lemhi 11612
97 37.33619364 276 2001.57 Mattingly Peak Elmore 9921
98 37.32502669 324 2000.76 10579 Custer 10579
37.30754067 33 1999.50 Webber Peak Lemhi 11284
99 37.27548377 329 1997.18 10820 A Custer 10820
100 37.26238579 161 1996.23 8409 Valley 8409
101 37.23223453 129 1994.05 5881 Idaho 5881
102 37.17116464 250 1989.64 9266 Elmore 9266
103 37.13715139 305 1987.19 11909 Custer 11909
104 37.07602996 131 1982.79 10648 Custer 10648
105 37.07364261 260 1982.62 7060 G Idaho 7060
106 37.03728702 55 1980.00 10330 Boise 10330
107 37.01863496 291 1978.66 Lost River Peak Custer 12078
37.01163138 154 1978.16 Crown Point A Blaine 9820
108 36.94758099 180 1973.56 8837 Lemhi 8837
109 36.93809176 230 1972.88 Copper Basin Knob Custer 10784
110 36.86200798 21 1967.44 Grouse Creek Mountain Custer 11085
111 36.82262651 34 1964.62 6018 Idaho 6018
112 36.78059152 135 1961.62 8605 A Boise 8605
113 36.7259356 208 1957.72 Smith Mountain B Bonner 6529
114 36.72086292 8 1957.36 11260 Custer 11260
115 36.67403689 47 1954.02 11090 Custer 11090
116 36.63165514 292 1951.00 Fin, The Custer 11887
117 36.60177517 94 1948.88 Merriam Lake Peak Custer 11180
118 36.60079687 204 1948.81 10601 B Butte 10601
119 36.5922006 259 1948.20 Angels Perch Custer 11687
120 36.57535594 248 1947.00 8111 Idaho 8111
121 36.56732853 155 1946.43 Rainey Point Idaho 5540
122 36.54089098 33 1944.56 Box, The Blaine + Custer 11305
123 36.5365456 178 1944.25 10060 B Lemhi 10060
36.50977581 92 1942.35 8184 Idaho & Ravalli 8184
124 36.44655795 357 1937.87 The Brow Butte 11005
125 36.43733498 74 1937.22 Aggipah Mountain Lemhi 9920
126 36.39666161 224 1934.34 Granite Mountain B Idaho 8020
127 36.35147503 62 1931.15 Alpine Peak Custer 9861
128 36.33061886 152 1929.68 11300 Custer 11300
36.31737082 290 1928.74 Dry Diggins Lookout Idaho 7860
129 36.29171238 87 1926.94 Goat Mountain Blaine + Custer 11913
130 36.286707 255 1926.58 Patrick Butte Idaho 8841
131 36.26137487 266 1924.80 8687 Idaho + Ravalli 8687
132 36.25145413 249 1924.10 Big Boy Peak Butte 11402
133 36.21256389 86 1921.36 7590 Valley 7590
134 36.18654724 30 1919.53 Kent Peak A Blaine + Custer 11664
135 36.18490624 273 1919.42 Monument Peak A Adams 8940
136 36.18464382 248 1919.40 11458 Custer 11458
36.15699579 9 1917.45 Chipmunk Perch Custer 9860
137 36.144118 275 1916.55 7384 A Idaho 7384
138 36.13859836 139 1916.16 4760 Idaho 4760
139 36.12677607 112 1915.33 Williams Peak A Custer 10635
36.12536603 224 1915.23 8266 Boise 8266
140 36.10549362 142 1913.84 6612 B Idaho 6612
141 36.08811579 142 1912.62 Imogene Benchmark Custer 10125
142 36.08326993 113 1912.28 Monument Peak Beaverhead + Lemhi 10323
143 36.03197818 214 1908.69 Huhs Horn Lemhi 11292
144 36.02693065 358 1908.33 7126 Adams 7126
145 35.99130325 286 1905.84 8702 Idaho + Ravalli 8702
35.96785472 341 1904.20 Black Ridge Idaho 5497
35.96028111 74 1903.67 Lake Creek Point Idaho 7639
146 35.96008327 266 1903.66 9305 Elmore 9305
147 35.93814527 286 1902.12 9367 A Blaine 9367
148 35.87562526 284 1897.76 Red Ridge B Valley 9320
149 35.85497565 1 1896.32 Invisible Mountain Custer 11330
150 35.85051574 237 1896.01 10269 Blaine 10269
35.83780195 24 1895.12 Twin Peaks West C Clearwater 5820
35.8091283 334 1893.12 Pool Knob Idaho 2900
151 35.79321084 243 1892.02 Edaho Mountain Boise + Elmore 9614
35.75305419 279 1889.22 Black Point Adams 6298
152 35.74075763 248 1888.37 11641 Custer 11641
153 35.71782957 343 1886.77 Petros Peak Custer 11060
154 35.70772536 227 1886.07 10740 A Custer 10740
155 35.70418329 36 1885.83 Perkins Peak Blaine + Custer 11220
156 35.6988764 301 1885.46 Cliff Mountain Adams 7407
157 35.69759986 345 1885.37 McGuire, Mount Lemhi 10082
35.69275297 268 1885.03 Squaw 2 Butte 10780
158 35.69264082 134 1885.02 8122 Valley 8122
159 35.65941657 287 1882.72 8922 Idaho + Ravalli 8922
160 35.64089649 310 1881.43 Boulder Lake Peak Custer 11100
161 35.62410204 0 1880.27 Nipple Knob Idaho 8505
35.62243696 135 1880.15 Canyon Creek Ridge Idaho 7036
162 35.62219942 84 1880.14 9036 B Elmore 9036
163 35.6135098 265 1879.54 Nick Peak Valley 9064
164 35.60876616 291 1879.21 10100 E Boise 10100
165 35.6030869 200 1878.81 5940 D Valley 5940
166 35.57183364 125 1876.65 9934 Custer 9934
167 35.56563563 146 1876.22 9438 A Boise 9438
168 35.56059547 293 1875.87 3940 A Bonner 3940
35.53129229 134 1873.84 Avalanche Ridge Clearwater 6700
169 35.49926152 140 1871.63 Scorpion Mountain Blaine 10545
35.48672951 262 1870.76 Dutchmans Hump Lemhi 6580
170 35.4819218 208 1870.43 May Mountain Lemhi 10971
35.45167217 280 1868.34 Triangle Mountain Idaho 3975
171 35.43837133 359 1867.43 6144 Idaho 6144
172 35.42690179 313 1866.63 8220 Idaho + Ravalli 8220
173 35.41862508 259 1866.06 Gooseberry Peak Custer 11090
174 35.41007331 305 1865.47 8414 Idaho 8414
35.39442683 108 1864.40 Great Western Peak Clark 10358
35.39226722 255 1864.25 7820 J Boise 7820
175 35.38479315 104 1863.73 9660 A Butte 9660
176 35.37615614 290 1863.14 Jacqueline Peak Blaine 11027
177 35.35945046 151 1861.99 Wolf Mountain A Boise 8876
178 35.3513052 151 1861.43 6631 Lemhi 6631
179 35.348542 308 1861.24 Butzien Butte Idaho 6086
35.33849481 104 1860.54 10180 A Butte 10180
180 35.33744605 143 1860.47 10700 B Custer 10700
181 35.32960063 347 1859.93 Parks Peak A Blaine + Custer 10208
182 35.32883741 28 1859.88 Shelly Mountain Custer 11278
183 35.32595885 124 1859.68 9470 B Camas + Elmore 9470
184 35.31788241 88 1859.13 Bruin Mountain Idaho 8767
35.3075547 292 1858.42 Kelly Mountain C Idaho 4820
185 35.30712253 62 1858.39 Nicholson Peak Butte 11060
186 35.28751587 42 1857.04 8515 Valley 8515
187 35.28722887 297 1857.02 9980 D Boise 9980
188 35.2855119 50 1856.90 7890 Idaho 7890
189 35.28133923 342 1856.61 Lonesome Lake Peak Custer 11302
35.27903919 108 1856.45 10358 Butte 10358
35.27548159 358 1856.21 Schoolmarm Peak Idaho 3571
190 35.27515679 344 1856.19 4020 F Bonner 4020
35.27315098 240 1856.05 Puzzle Point Idaho 6055
35.24630312 203 1854.21 9711 Boise 9711
191 35.21269816 66 1851.90 11272 Custer 11272
35.20292601 232 1851.23 Idaho County HP Idaho + Ravalli 9439
35.20118618 325 1851.11 Bobcat Ridge Idaho 7686
192 35.18617637 272 1850.08 9460 A Lemhi 9460
193 35.17967026 315 1849.63 8460 D Elmore 8460
194 35.1752588 141 1849.33 Fenn Mountain Idaho 8021
195 35.17389944 342 1849.24 Vance Mountain Idaho 8793
35.16012465 247 1848.29 9517 Butte 9517
196 35.15993341 301 1848.28 Logan Mountain Valley 9002
197 35.15689895 328 1848.07 7774 C Idaho 7774
35.14678755 207 1847.38 6380 Lemhi 6380
198 35.14640284 60 1847.35 Taylor Mountain Beaverhead + Clark 9860
199 35.13247639 289 1846.40 Germer Peak Custer 7684
200 35.13082904 202 1846.29 Lions Head Ridge Boundary 6601