CO 12ers List
ForrestThorniley has completed 170 of 682 CO 12ers with 300'+ prominence
45 CO 12ers with less than 300' prominence
| # |
Name |
Rank |
Elevation |
Prominence |
Counties |
Quadrangle |
| 1 | Bear Mountain | 641 | 12,991' | 553' | San Juan | Silverton |
| 2 | Toll, Mount | 643 | 12,989' | 454' | Boulder & Grand | Monarch Lake |
| 3 | Engineer Mountain | 649 | 12,980' | 1,429' | San Juan | Engineer Mountain |
| 4 | Shoshoni Peak | 650 | 12,979' | 328' | Boulder & Grand | Monarch Lake |
| 5 | 12970 | 656 | 12,970' | 603' | Chaffee & Gunnison | Mount Yale |
| 6 | 12967 | 658 | 12,967' | 307' | Clear Creek | Mount Evans |
| 7 | Ouray Peak | 662 | 12,961' | 372' | Chaffee | Independence Pass |
| 8 | Pawnee Peak | 669 | 12,955' | 404' | Boulder & Grand | Monarch Lake |
| 9 | Fools Peak | 670 | 12,954' | 613' | Eagle | Mount Jackson |
| 10 | Vasquez Peak | 671 | 12,951' | 1,021' | Clear Creek & Grand | Berthoud Pass |
| 11 | "Ooh La La!" | | 12,951' | 252' | Boulder & Grand | Isolation Peak |
| 12 | Woods Mountain | 676 | 12,944' | 467' | Clear Creek | Grays Peak |
| 13 | Star Mountain | 682 | 12,940' | 547' | Lake | Independence Pass |
| 14 | Tenmile Peak | 683 | 12,938' | 808' | Summit | Frisco |
| 15 | Jasper, Mount | 694 | 12,923' | 1,011' | Boulder & Grand | East Portal |
| 16 | 12918 | 701 | 12,918' | 539' | Eagle | Mount Jackson |
| 17 | 12914 | 704 | 12,914' | 416' | Eagle | Mount Jackson |
| 18 | "Deming Mountain" | 708 | 12,911' | 1,193' | Eagle & Summit | Vail Pass |
| 19 | Ganley Mountain | | 12,902' | 122' | Clear Creek | Grays Peak |
| 20 | South Peak | 717 | 12,900' | 975' | Lake | South Peak |
| 21 | Galena Mountain | 718 | 12,900' | 580' | Lake | Homestake Reservoir |
| 22 | Decatur Mountain | 723 | 12,892' | 479' | Clear Creek & Summit | Montezuma |
| 23 | Red Mountain No. 3 | 725 | 12,890' | 1,139' | Ouray & San Juan | Ironton |
| 24 | Revenue Mountain | 726 | 12,888' | 482' | Clear Creek & Summit | Montezuma |
| 25 | "Pawshoni" | | 12,888' | 114' | Boulder & Grand | Monarch Lake |
| 26 | Long Trek Mountain | 732 | 12,881' | 588' | Archuleta | Elwood Pass |
| 27 | Logan, Mount | 734 | 12,876' | 1,218' | Park | Mount Logan |
| 28 | Chipeta Mountain, South | | 12,874' | 225' | Chaffee & Gunnison | Mount Ouray |
| 29 | Buckeye Peak | 736 | 12,873' | 1,552' | Lake | Leadville North |
| 30 | Elk Tooth | 737 | 12,872' | 491' | Boulder | Isolation Peak |
| 31 | Peak 4 | 739 | 12,871' | 488' | Summit | Frisco |
| 32 | 12870 | 740 | 12,870' | 461' | Gunnison | Fairview Peak |
| 33 | "Peak S" | 746 | 12,860' | 361' | Summit | Vail East |
| 34 | Bald Mountain | 747 | 12,859' | 459' | Chaffee & Gunnison | Garfield |
| 35 | Peak 5 | | 12,859' | 77' | Summit | Frisco |
| 36 | Neva, Mount | 751 | 12,849' | 506' | Boulder & Grand | Monarch Lake |
| 37 | Silver Mountain | | 12,847' | 227' | Summit | Montezuma |
| 38 | Broncho Mountain | 753 | 12,844' | 668' | Gunnison | Fairview Peak |
| 39 | Chrysolite Mountain | 754 | 12,842' | 727' | Chaffee | Saint Elmo |
| 40 | 12839 | 756 | 12,839' | 329' | Gunnison | Italian Creek |
| 41 | Wulsten Baldy | 758 | 12,836' | 437' | Custer | Electric Peak |
| 42 | Sheep Mountain | 765 | 12,827' | 786' | Park | Fairplay West |
| 43 | Avalanche Peak | 774 | 12,816' | 406' | Eagle | Mount Jackson |
| 44 | Bobtail Benchmark | 777 | 12,809' | 353' | Clear Creek & Grand | Byers Peak |
| 45 | Machebeuf, Mount | | 12,806' | 262' | Clear Creek | Grays Peak |
| 46 | Peak 1 | | 12,806' | 236' | Summit | Frisco |
| 47 | Baldy, Mount | 783 | 12,803' | 1,517' | Gunnison | Oh-Be-Joyful |
| 48 | Mesa Seco | 786 | 12,802' | 1,469' | Hinsdale | Cannibal Plateau |
| 49 | 12787 | 793 | 12,787' | 351' | Custer | Electric Peak |
| 50 | Otter Mountain | 799 | 12,782' | 382' | Clear Creek | Georgetown |
| 51 | Buffalo Mountain | 801 | 12,781' | 909' | Summit | Vail Pass |
| 52 | 12777 | 803 | 12,777' | 654' | Hinsdale | Baldy Cinco |
| 53 | "Sacred Buffalo" | | 12,777' | 77' | Summit | Vail Pass |
| 54 | 12769 | 808 | 12,769' | 616' | Grand | Berthoud Pass |
| 55 | Chapman, Mount | 813 | 12,765' | 640' | Chaffee & Gunnison | Whitepine |
| 56 | Coon Hill | 817 | 12,761' | 551' | Grand & Summit | Loveland Pass |
| 57 | AS P560 Benchmark | 826 | 12,752' | 359' | Clear Creek & Summit | Loveland Pass |
| 58 | Birthday Peak | 827 | 12,752' | 349' | Chaffee & Gunnison | Mount Harvard |
| 59 | 12741 | 831 | 12,741' | 982' | Pitkin | Homestake Reservoir |
| 60 | "West Deming" | 832 | 12,741' | 701' | Eagle & Summit | Vail Pass |
| 61 | 12739 | 835 | 12,739' | 400' | Chaffee | Mount Yale |
| 62 | 12739 | 836 | 12,739' | 316' | Chaffee | Independence Pass |
| 63 | Hallett Peak | 845 | 12,723' | 769' | Grand & Larimer | McHenrys Peak |
| 64 | American Flag Mountain | 846 | 12,723' | 723' | Gunnison | Italian Creek |
| 65 | "The Bishop" | | 12,717' | 31' | Boulder & Grand | Monarch Lake |
| 66 | Bristol Head | 853 | 12,712' | 1,201' | Mineral | Bristol Head |
| 67 | Missouri Hill | 856 | 12,708' | 448' | Chaffee | Garfield |
| 68 | Bethel, Mount | 857 | 12,707' | 464' | Clear Creek | Loveland Pass |
| 69 | 12707 | 859 | 12,707' | 312' | Park | Boreas Pass |
| 70 | "The Bishop's Scepter" | | 12,705' | 59' | Grand | Monarch Lake |
| 71 | Elk Mountain | 860 | 12,704' | 666' | Eagle & Summit | Copper Mountain |
| 72 | Stony Mountain | 864 | 12,698' | 410' | Ouray | Telluride |
| 73 | Arrowhead | | 12,693' | 255' | Larimer | McHenrys Peak |
| 74 | 12681 | 877 | 12,681' | 310' | Gunnison | Crystal Creek |
| 75 | Peak 3 | | 12,676' | 136' | Summit | Frisco |
| 76 | Burwell Peak | | 12,673' | 156' | La Plata & Montezuma | La Plata |
| 77 | Peak 7 | | 12,665' | 45' | Summit | Breckenridge |
| 78 | 12644 | 903 | 12,644' | 352' | Park | Jones Hill |
| 79 | 12640 | | 12,640' | 271' | Boulder & Grand | East Portal |
| 80 | 12631 | 914 | 12,631' | 652' | Gunnison | Whitepine |
| 81 | Ruby Peak | 915 | 12,631' | 400' | Gunnison | Marcellina Mountain |
| 82 | Independence Mountain | 923 | 12,617' | 738' | Summit | Keystone |
| 83 | Prospect Mountain | 924 | 12,617' | 556' | Lake | Climax |
| 84 | Dunn Peak | 929 | 12,612' | 507' | Dolores & San Miguel | Groundhog Mountain |
| 85 | Lost Mountain | 932 | 12,610' | 404' | Chaffee | Garfield |
| 86 | Volz Benchmark | 940 | 12,598' | 619' | Park | Boreas Pass |
| 87 | Bear Mountain | | 12,589' | 287' | Summit | Keystone |
| 88 | 12585 | 947 | 12,585' | 466' | Gunnison | Tincup |
| 89 | Corbett Peak | | 12,583' | 123' | Eagle & Summit | Copper Mountain |
| 90 | 12582 | 951 | 12,582' | 439' | Summit | Loveland Pass |
| 91 | "Algonquin" | 952 | 12,581' | 427' | Boulder & Grand | Monarch Lake |
| 92 | Peak 6 | | 12,573' | 193' | Summit | Breckenridge |
| 93 | Andrews Peak | 956 | 12,571' | 1,197' | Grand | Isolation Peak |
| 94 | Spearhead, The | | 12,571' | 244' | Boulder | McHenrys Peak |
| 95 | 12569 | 959 | 12,569' | 335' | Park | Jefferson |
| 96 | New York Mountain | 967 | 12,555' | 370' | Eagle | Grouse Mountain |
| 97 | Sharkstooth, The | 977 | 12,531' | 394' | Larimer | McHenrys Peak |
| 98 | Stanley Mountain | 979 | 12,529' | 824' | Clear Creek & Grand | Berthoud Pass |
| 99 | Uneva Peak | 980 | 12,527' | 1,015' | Eagle & Summit | Vail Pass |
| 100 | Sugarloaf Peak | 985 | 12,523' | 462' | Clear Creek | Georgetown |
| 101 | 12522 | | 12,522' | 298' | Eagle | Mount Jackson |
| 102 | 12508 | 996 | 12,508' | 348' | Eagle | Willow Lakes |
| 103 | 12501 | 1002 | 12,501' | 318' | Lake | Homestake Reservoir |
| 104 | Colorado Mines Peak | 1004 | 12,500' | 334' | Clear Creek & Grand | Berthoud Pass |
| 105 | Ptarmigan Peak | 1005 | 12,498' | 704' | Grand & Summit | Dillon |
| 106 | Lyle Benchmark | 1007 | 12,492' | 565' | Lake & Pitkin | Nast |
| 107 | 12492 | 1008 | 12,492' | 502' | Gunnison | Fairview Peak |
| 108 | Silver Plume Mountain | 1013 | 12,488' | 464' | Clear Creek | Grays Peak |
| 109 | Otis Peak | 1019 | 12,481' | 450' | Larimer | McHenrys Peak |
| 110 | Trelease, Mount | | 12,477' | 217' | Clear Creek | Loveland Pass |
| 111 | 12476 | 1022 | 12,476' | 422' | Rio Grande | Elwood Pass |
| 112 | Morgan Peak | | 12,474' | 174' | Summit | Montezuma |
| 113 | Sundance Mountain | 1026 | 12,470' | 1,161' | Larimer | Trail Ridge |
| 114 | 12469 | 1028 | 12,469' | 307' | Gunnison | Fairview Peak |
| 115 | 12458 | 1035 | 12,458' | 365' | Lake & Pitkin | Homestake Reservoir |
| 116 | 12457 | 1036 | 12,457' | 335' | Lake & Park | South Peak |
| 117 | Poor, Mount | 1038 | 12,455' | 511' | Chaffee & Gunnison | Cumberland Pass |
| 118 | Chapin, Mount | 1039 | 12,455' | 398' | Larimer | Trail Ridge |
| 119 | Forest Hill | 1040 | 12,449' | 1,174' | Gunnison | Italian Creek |
| 120 | Copper Mountain | 1043 | 12,447' | 611' | Summit | Copper Mountain |
| 121 | Glacier Mountain | 1047 | 12,443' | 406' | Summit | Keystone |
| 122 | Kataka Mountain | 1048 | 12,440' | 731' | Park | Mount Evans |
| 123 | East Beckwith Mountain | 1049 | 12,439' | 2,499' | Gunnison | Anthracite Range |
| 124 | "V 6" | 1050 | 12,439' | 428' | San Juan | Silverton |
| 125 | 12436 | 1051 | 12,436' | 502' | Gunnison | New York Peak |
| 126 | Bison Peak | 1052 | 12,435' | 2,441' | Park | McCurdy Mountain |
| 127 | Tanima Peak | 1057 | 12,433' | 380' | Boulder | Isolation Peak |
| 128 | "Peak X" | 1058 | 12,432' | 1,759' | Park | Topaz Mountain |
| 129 | 12427 | 1062 | 12,427' | 434' | Grand & Summit | Loveland Pass |
| 130 | North Sheep Mountain | 1063 | 12,427' | 400' | Eagle & Summit | Copper Mountain |
| 131 | Tucker Mountain | | 12,421' | 161' | Summit | Copper Mountain |
| 132 | Keystone Mountain | 1068 | 12,416' | 345' | Summit | Keystone |
| 133 | Sheep Mountain | 1074 | 12,406' | 582' | Teller | Pikes Peak |
| 134 | Republican Mountain | 1076 | 12,403' | 312' | Clear Creek | Georgetown |
| 135 | Emmons, Mount | 1080 | 12,399' | 568' | Gunnison | Oh-Be-Joyful |
| 136 | Cumberland Mountain | 1081 | 12,396' | 389' | La Plata | La Plata |
| 137 | 12395 | 1082 | 12,395' | 437' | Rio Grande | Summitville |
| 138 | "Red Deer Mountain" | 1085 | 12,394' | 442' | Boulder & Grand | Isolation Peak |
| 139 | Matchless Mountain | 1088 | 12,389' | 1,779' | Gunnison | Matchless Mountain |
| 140 | Ashcroft Mountain | 1092 | 12,387' | 409' | Pitkin | Hayden Peak |
| 141 | "Skyscraper Peak" | 1094 | 12,385' | 619' | Boulder | East Portal |
| 142 | Sheep Mountain | 1096 | 12,381' | 312' | Eagle & Summit | Copper Mountain |
| 143 | Highland Peak | | 12,381' | 201' | Pitkin | Highland Peak |
| 144 | Almagre Mountain | 1100 | 12,374' | 1,325' | Teller | Manitou Springs |
| 145 | "Outpost Peak" | 1102 | 12,367' | 420' | Eagle | Vail East |
| 146 | 12367 | 1103 | 12,367' | 345' | Grand & Summit | Dillon |
| 147 | Gold Hill | 1105 | 12,364' | 317' | Gunnison & Pitkin | New York Peak |
| 148 | Flat Top Mountain | 1106 | 12,359' | 4,063' | Garfield | Orno Peak |
| 149 | Almagre Mountain, South | 1107 | 12,356' | 393' | Teller | Manitou Springs |
| 150 | "Trail Ridge" | 1110 | 12,349' | 519' | Larimer | Fall River Pass |
| 151 | 12348 | 1112 | 12,348' | 320' | Grand & Summit | Loveland Pass |
| 152 | Geneva Mountain | 1118 | 12,344' | 717' | Park | Mount Evans |
| 153 | "Madonna Dome" | 1125 | 12,331' | 668' | Park & Summit | Boreas Pass |
| 154 | Ball Mountain | 1127 | 12,330' | 325' | Lake | Mount Sherman |
| 155 | Flattop Mountain | | 12,330' | 35' | Grand & Larimer | McHenrys Peak |
| 156 | South Twin Cone Peak | 1128 | 12,329' | 695' | Park | Mount Logan |
| 157 | Sawtooth Mountain | 1129 | 12,328' | 382' | Boulder | Allens Park |
| 158 | North Twin Cone Peak | 1132 | 12,324' | 398' | Park | Mount Logan |
| 159 | 12324 | | 12,324' | 296' | Clear Creek & Grand | Berthoud Pass |
| 160 | Ptarmigan Mountain | | 12,322' | 294' | Grand | McHenrys Peak |
| 161 | "Harrison Mountain" | 1134 | 12,321' | 396' | Clear Creek | Berthoud Pass |
| 162 | "Eccles Peak" | 1135 | 12,320' | 404' | Summit | Vail Pass |
| 163 | Union Mountain | | 12,313' | 53' | Summit | Copper Mountain |
| 164 | Ute Peak | 1142 | 12,310' | 1,119' | Grand | Ute Peak |
| 165 | 12309 | 1146 | 12,309' | 327' | Gunnison | Whitepine |
| 166 | Parkview Mountain | 1149 | 12,303' | 2,667' | Grand & Jackson | Parkview Mountain |
| 167 | 12303 | 1150 | 12,303' | 304' | Boulder & Grand | Isolation Peak |
| 168 | "Russell Peak" | | 12,300' | 40' | Clear Creek & Grand | Berthoud Pass |
| 169 | Cinnamon Mountain | 1154 | 12,299' | 732' | Gunnison | Oh-Be-Joyful |
| 170 | "Quarter to 5 Peak" | 1159 | 12,290' | 378' | Boulder & Grand | Monarch Lake |
| 171 | Deadwood Mountain | | 12,290' | 282' | La Plata | La Plata |
| 172 | Sherman Mountain | | 12,287' | 107' | Clear Creek | Georgetown |
| 173 | "Peak Y" | 1161 | 12,282' | 536' | Park | Topaz Mountain |
| 174 | Divide Benchmark | 1171 | 12,264' | 332' | Lake & Pitkin | Homestake Reservoir |
| 175 | Prospect Mountain | | 12,260' | 140' | Conejos | Elwood Pass |
| 176 | "Sneva Peak" | 1173 | 12,259' | 342' | Summit | Vail Pass |
| 177 | "Peak Z" | | 12,252' | 296' | Park | Topaz Mountain |
| 178 | "Ptarmigans Beak" | 1178 | 12,246' | 369' | Grand | Isolation Peak |
| 179 | South Matchless Mountain | 1181 | 12,242' | 761' | Gunnison | Matchless Mountain |
| 180 | "Heartbeat Peak" | 1190 | 12,223' | 372' | Gilpin & Grand | East Portal |
| 181 | Goliath Peak | | 12,216' | 64' | Clear Creek | Idaho Springs |
| 182 | Peck, Mount | 1198 | 12,209' | 576' | Chaffee & Gunnison | Pahlone Peak |
| 183 | 12202 | 1201 | 12,202' | 331' | Chaffee & Gunnison | Pahlone Peak |
| 184 | Derby Peak | 1208 | 12,188' | 629' | Garfield | Trappers Lake |
| 185 | Saint Vrain Mountain | 1213 | 12,175' | 879' | Boulder | Allens Park |
| 186 | McCurdy Mountain | 1214 | 12,174' | 792' | Park | McCurdy Mountain |
| 187 | 12173 | 1217 | 12,173' | 408' | Lake & Pitkin | Homestake Reservoir |
| 188 | Crested Butte | 1222 | 12,166' | 2,580' | Gunnison | Gothic |
| 189 | Little Baldy Mountain | 1224 | 12,157' | 972' | Park | Como |
| 190 | Black Face | 1227 | 12,153' | 640' | Dolores & San Miguel | Mount Wilson |
| 191 | Ptarmigan Hill | 1230 | 12,152' | 403' | Eagle & Summit | Pando |
| 192 | Stormy Peaks, West | 1232 | 12,149' | 457' | Larimer | Pingree Park |
| 193 | Pearl Peak | | 12,147' | 127' | Eagle | Copper Mountain |
| 194 | Orno Peak | 1239 | 12,139' | 752' | Garfield | Orno Peak |
| 195 | Bald Mountain | 1240 | 12,139' | 502' | Eagle | Vail East |
| 196 | Terrible Mountain | | 12,134' | 119' | Gunnison | Fairview Peak |
| 197 | "Blackfoot" | 1248 | 12,126' | 371' | Grand | Monarch Lake |
| 198 | "Sprint Peak" | | 12,124' | 230' | Gilpin & Grand | East Portal |
| 199 | Red Mountain | 1260 | 12,096' | 460' | Clear Creek | Berthoud Pass |
| 200 | "X Prime" | | 12,095' | 297' | Park | Topaz Mountain |
| 201 | "Kenosha Peak" | 1261 | 12,094' | 329' | Park | Mount Logan |
| 202 | 12088 | | 12,088' | 284' | Park | Jefferson |
| 203 | Flagstaff Mountain | 1268 | 12,080' | 520' | Saguache | Bonanza |
| 204 | "Zephyr" | 1269 | 12,077' | 345' | Park | Topaz Mountain |
| 205 | "Burning Bear Peak" | 1270 | 12,074' | 392' | Park | Montezuma |
| 206 | "Beacon Peak" | | 12,072' | 172' | Gilpin & Grand | East Portal |
| 207 | 12061 | 1281 | 12,061' | 385' | Gunnison | Whitepine |
| 208 | Twin Cones, South | | 12,060' | 160' | Grand | Berthoud Pass |
| 209 | Twin Cones, North | | 12,058' | 198' | Grand | Berthoud Pass |
| 210 | Charles Benchmark | 1284 | 12,054' | 336' | Eagle | Crooked Creek Pass |
| 211 | Tiptop Peak | | 12,053' | 33' | Summit | Montezuma |
| 212 | Red Table Mountain | 1288 | 12,042' | 2,039' | Eagle | Red Creek |
| 213 | "Panorama Point" | | 12,041' | 149' | Park & Summit | Boreas Pass |
| 214 | Chalk Mountain | 1306 | 12,021' | 680' | Lake | Climax |
| 215 | Trappers Peak | 1313 | 12,008' | 803' | Garfield | Trappers Lake |
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