List of mountain passes in Colorado

This is a list of some important mountain passes in the Rocky Mountains of the U.S. State of Colorado.

Relief map of the U.S. State of Colorado.

Mountain passes and highway summits traversed by improved roads
Pass[lower-alpha 1] Maximum elevation[lower-alpha 2] Maximum grade[lower-alpha 3] Road surface[lower-alpha 4] Route[lower-alpha 5] Coordinates[lower-alpha 6]
Trail Ridge High Point[lower-alpha 7] 12,183 feet
3,713 m		 5.4% WB Asphalt US Highway Route 34 40°25′42″N 105°45′32″W
Cottonwood Pass[lower-alpha 8] 12,126 feet
3,696 m[lower-alpha 9]		 Asphalt Chaffee CR 306
Gunnison CR 209		 38°49′40″N 106°24′33″W
Independence Pass[lower-alpha 10] 12,095 feet
3,687 m		 6.0% Asphalt Colorado State Highway Route 82 39°06′32″N 106°33′50″W
Cumberland Pass 12,015 feet
3,662 m		 Gravel Forest Road 765 38°41′21″N 106°29′03″W
Loveland Pass[lower-alpha 8] 11,992 feet
3,655 m		 6.0% Asphalt US Highway Route 6 39°39′49″N 105°52′45″W
Iceberg Pass 11,827 feet
3,605 m[lower-alpha 11]		 Asphalt US Highway Route 34 40°25′03″N 105°44′46″W
Fall River Pass 11,796 feet
3,595 m		 Asphalt west
Gravel east		 Fall River Road 40°26′29″N 105°45′11″W
Guanella Pass 11,669 feet
3,557 m[lower-alpha 11]		 Asphalt/Gravel Guanella Pass Road 39°35′42″N 105°42′40″W
Hoosier Pass[lower-alpha 8] 11,541 feet
3,518 m		 8.0% NB Asphalt Colorado State Highway Route 9 39°21′42″N 106°03′45″W
Slumgullion Summit 11,530 feet
3,514 m		 9.4% NB
7.9% SB		 Asphalt Colorado State Highway Route 149 37°59′15″N 107°12′48″W
Boreas Pass[lower-alpha 8] 11,481 feet
3,499 m		 Gravel 39°24′40″N 105°58′10″W
Old Monarch Pass[lower-alpha 8] 11,375 feet
3,467 m		 Gravel former US 50 38°29′48″N 106°20′17″W
Fremont Pass[lower-alpha 8] 11,318 feet
3,450 m		 5.7% Asphalt Colorado State Highway Route 91 39°21′59″N 106°11′12″W
Berthoud Pass[lower-alpha 8] 11,315 feet
3,449 m		 6.1% NB
6.0% SB		 Asphalt US Highway Route 40 39°47′54″N 105°46′40″W
Monarch Pass[lower-alpha 8] 11,312 feet
3,448 m		 6.4% Asphalt US Highway Route 50 38°29′48″N 106°19′32″W
Cordova Pass 11,248 feet
3,428 m[lower-alpha 11]		 Gravel 37°20′54″N 105°01′29″W
Eisenhower Tunnel[lower-alpha 12] 11,158 feet
3,401 m		 7.0% EB
6.0% WB		 Concrete Interstate Highway Route 70 39°40′44″N 105°55′29″W
Shrine Pass 11,089 feet
3,380 m[lower-alpha 11]		 Gravel former SH 293 39°32′46″N 106°14′27″W
Juniper Pass 11,020 feet
3,359 m		 Asphalt Colorado State Highway Route 103 39°40′19″N 105°33′53″W
Red Mountain Pass 11,018 feet
3,358 m		 7.2% Asphalt US Highway Route 550 37°53′56″N 107°42′43″W
Molas Pass 10,910 feet
3,325 m		 7.0% Asphalt US Highway Route 550 37°44′16″N 107°41′53″W
Spring Creek Pass[lower-alpha 8] 10,901 feet
3,323 m		 7.5% Asphalt Colorado State Highway Route 149 37°56′27″N 107°09′33″W
Wolf Creek Pass[lower-alpha 8] 10,857 feet
3,309 m		 6.8% Asphalt US Highway Route 160 37°28′59″N 106°48′07″W
Marshall Pass[lower-alpha 8] 10,842 feet
3,305 m		 Gravel Forest Road 200
Forest Road 243		 38°23′29″N 106°14′50″W
Grand Mesa Summit[lower-alpha 13] 10,839 feet
3,304 m		 6.4% NB Asphalt Colorado State Highway Route 65 39°01′39″N 108°01′54″W
Milner Pass[lower-alpha 7][lower-alpha 8] 10,759 feet
3,279 m		 5.4% WB Asphalt US Highway Route 34 40°25′11″N 105°48′41″W
Vail Pass 10,666 feet
3,251 m		 7.0% Asphalt Interstate Highway Route 70 39°31′50″N 106°13′02″W
Coal Bank Pass 10,640 feet
3,243 m		 6.5% NB Asphalt US Highway Route 550 37°42′02″N 107°46′37″W
Los Pinos Pass 10,509 feet
3,203 m		 Gravel Forest Road 788 38°06′14″N 106°58′20″W
Tennessee Pass[lower-alpha 8] 10,424 feet
3,177 m		 6.0% Asphalt US Highway Route 24 39°21′44″N 106°18′38″W
Ripple Creek Pass 10,343 feet
3,153 m[lower-alpha 11]		 Gravel former SH 132 40°06′43″N 107°17′44″W
Buffalo Pass[lower-alpha 8] 10,300 feet
3,139 m[lower-alpha 11]		 Gravel 40°32′37″N 106°41′06″W
Cameron Pass 10,276 feet
3,132 m		 3.8% EB
3.1% WB		 Asphalt Colorado State Highway Route 14 40°31′15″N 105°53′33″W
La Manga Pass 10,230 feet
3,118 m		 5.2% Asphalt Colorado State Highway Route 17 37°04′39″N 106°23′10″W
Lizard Head Pass 10,222 feet
3,116 m		 4.1% Asphalt Colorado State Highway Route 145 37°48′40″N 107°54′22″W
Tenderfoot Pass 10,200 feet
3,109 m		 Asphalt Colorado State Highway Route 67 38°45′46″N 105°09′24″W
Carnero Pass 10,166 feet
3,099 m		 Gravel Saguache CR 41G 38°00′16″N 106°25′50″W
North Pass[lower-alpha 8] 10,149 feet
3,093 m		 6.0% Asphalt Colorado State Highway Route 114 38°12′51″N 106°34′21″W
Ohio Pass 10,065 feet
3,068 m		 Gravel Gunnison CR 703 38°50′05″N 107°05′30″W
Red Hill Pass 10,051 feet
3,064 m[lower-alpha 11]		 6.0% Asphalt US Highway Route 285 39°16′03″N 105°57′40″W
Cochetopa Pass[lower-alpha 8] 10,022 feet
3,055 m		 6.0% Gravel former SH 114 38°09′46″N 106°36′00″W
Cumbres Pass 10,022 feet
3,055 m		 6.3% Asphalt Colorado State Highway Route 17 37°01′14″N 106°27′00″W
Kebler Pass[lower-alpha 14] 10,007 feet
3,050 m		 Gravel except asphalt over pass former SH 135 38°50′51″N 107°05′54″W
Kenosha Pass 10,001 feet
3,048 m		 5.3% EB Asphalt US Highway Route 285 39°24′46″N 105°45′27″W
Cucharas Pass 9,941 feet
3,030 m[lower-alpha 11]		 5.9% NB
5.4% SB		 Asphalt Colorado State Highway Route 12 37°19′13″N 105°04′25″W
Dunckley Pass 9,763 feet
2,976 m[lower-alpha 11]		 Gravel former SH 132 40°12′06″N 107°09′31″W
Willow Creek Pass[lower-alpha 8] 9,621 feet
2,932 m[lower-alpha 11]		 6.3% Asphalt Colorado State Highway Route 125 40°21′01″N 106°05′21″W
Old Rabbit Ears Pass[lower-alpha 8] 9,573 feet
2,918 m		 Asphalt former US 40 40°23′59″N 106°37′03″W
Gore Pass 9,527 feet
2,904 m		 6.3% Asphalt Colorado State Highway Route 134 40°04′33″N 106°33′39″W
Wilkerson Pass 9,507 feet
2,898 m		 5.8% Asphalt US Highway Route 24 39°02′17″N 105°31′32″W
Currant Creek Pass 9,482 feet
2,890 m		 Asphalt Colorado State Highway Route 9 38°50′13″N 105°38′10″W
Rabbit Ears Pass[lower-alpha 8] 9,426 feet
2,873 m		 6.8% Asphalt US Highway Route 40 40°23′05″N 106°36′42″W
North La Veta Pass 9,413 feet
2,869 m		 6.0% Asphalt US Highway Route 160 37°36′48″N 105°11′27″W
Bigelow Divide 9,403 feet
2,866 m		 Asphalt Colorado State Highway Route 96 38°05′55″N 105°07′40″W
Pass Creek Pass 9,400 feet
2,865 m		 Gravel former SH 305 37°37′14″N 105°13′46″W
La Veta Pass 9,380 feet
2,859 m[lower-alpha 11]		 Gravel former US 160 37°35′35″N 105°12′12″W
Trout Creek Pass 9,346 feet
2,849 m		 5.2% Asphalt US Highway Route 24US Highway Route 285 38°54′36″N 105°58′30″W
Battle Mountain Summit 9,267 feet
2,825 m		 Asphalt US Highway Route 24 39°31′23″N 106°23′23″W
Ute Pass 9,165 feet
2,793 m		 5.6% Asphalt US Highway Route 24 38°56′30″N 105°09′27″W
Wind River Pass 9,130 feet
2,783 m[lower-alpha 11]		 Asphalt Colorado State Highway Route 7 40°17′45″N 105°32′38″W
Black Mesa Summit 9,121 feet
2,780 m		 Asphalt Colorado State Highway Route 92 38°28′33″N 107°32′52″W
Hardscrabble Pass 9,085 feet
2,769 m		 Asphalt Colorado State Highway Route 96 38°09′32″N 105°17′58″W
Poncha Pass 9,010 feet
2,746 m		 2.9% Asphalt US Highway Route 285 38°25′20″N 106°05′13″W
Dallas Divide 8,970 feet
2,734 m		 6.4% EB
5.0% WB		 Asphalt Colorado State Highway Route 62 38°05′40″N 107°53′18″W
McClure Pass 8,755 feet
2,669 m		 8.0% Asphalt Colorado State Highway Route 133 39°07′44″N 107°17′02″W
Muddy Pass[lower-alpha 8] 8,710 feet
2,655 m[lower-alpha 11]		 5.6% Asphalt US Highway Route 40 40°22′45″N 106°34′44″W
Blue Mesa Summit 8,704 feet
2,653 m		 Asphalt US Highway Route 50 38°23′10″N 107°25′58″W
Wondervu Hill 8,660 feet
2,640 m		 Asphalt Colorado State Highway Route 72 39°55′28″N 105°23′48″W
Promontory Divide 8,579 feet
2,615 m[lower-alpha 11]		 Asphalt Colorado State Highway Route 69 37°56′16″N 105°19′37″W
Baxter Pass 8,400 feet
2,560 m[lower-alpha 11]		 Gravel 39°34′55″N 108°57′09″W
Gunsight Pass 8,332 feet
2,540 m[lower-alpha 11]		 Gravel former SH 289 40°12′33″N 106°19′54″W
Douglas Pass 8,268 feet
2,520 m		 7.0% Asphalt Colorado State Highway Route 139 39°35′51″N 108°48′11″W
Cerro Summit 7,958 feet
2,426 m		 Asphalt US Highway Route 50 38°26′38″N 107°38′29″W
Raton Pass[lower-alpha 15] 7,834 feet
2,388 m[lower-alpha 15]		 Asphalt Interstate Highway Route 25 36°59′26″N 104°28′54″W
Floyd Hill 7,820 feet
2,384 m		 Asphalt Interstate Highway Route 70 39°43′22″N 105°24′49″W
Yellowjacket Pass 7,783 feet
2,372 m		 Asphalt US Highway Route 160 37°15′45″N 107°26′55″W
Golden Gate Pass 7,754 feet
2,363 m[lower-alpha 11]		 Asphalt Colorado State Highway Route 46Jefferson County Road 70 39°48′57″N 105°23′49″W
Yellow Jacket Pass 7,420 feet
2,262 m[lower-alpha 11]		 Gravel Route CR 114 40°18′11″N 106°52′13″W
Monument Hill 7,352 feet
2,241 m		 Asphalt Interstate Highway Route 25 39°07′26″N 104°51′51″W
Palmer Saddle 7,230 feet
2,204 m		 Asphalt Colorado State Highway Route 105 39°07′22″N 104°54′46″W
Unaweep Divide 7,048 feet
2,148 m		 Asphalt Colorado State Highway Route 141 38°47′26″N 108°39′18″W
Gypsum Gap 6,100 feet
1,859 m		 Asphalt Colorado State Highway Route 141 38°01′20″N 108°42′33″W

Mountain summit highways
Highway[lower-alpha 16] Maximum elevation Maximum grade[lower-alpha 3] Road surface[lower-alpha 4] Route[lower-alpha 5] Coordinates[lower-alpha 6]
Mount Evans Scenic Byway[lower-alpha 17] 14,140 feet
4,310 m[lower-alpha 11]		 15% Asphalt Colorado State Highway Route 5 39°35′17″N 105°38′33″W
Pikes Peak Highway[lower-alpha 18] 14,115 feet
4,302 m[1]		 8% Asphalt Pikes Peak Toll Road 38°50′26″N 105°02′40″W

Mountain passes traversed by unimproved roads
Pass[lower-alpha 1] Elevation[lower-alpha 19] Road Coordinates[lower-alpha 6]
Argentine Pass[lower-alpha 8][lower-alpha 20] 13,207 feet
4,025 m[lower-alpha 11]		 39°37′31″N 105°46′57″W
Mosquito Pass 13,186 feet
4,019 m[lower-alpha 11]		 former SH 300 39°16′53″N 106°11′10″W
Imogene Pass 13,117 feet
3,998 m		 37°55′56″N 107°44′10″W
California Pass[2] 12,960 feet
3,950 m		 37°54′46″N 107°36′32″W
Black Bear Pass 12,840 feet
3,914 m		 FSR 648 37°53′58″N 107°44′32″W
Engineer Pass[3][4] 12,800 feet
3,901 m		 37°58′32″N 107°35′04″W
Hurricane Pass[5] 12,730 feet
3,880 m		 37°55′03″N 107°37′01″W
Pearl Pass 12,713 feet
3,875 m		 38°58′46″N 106°49′24″W
Stony Pass[6] 12,650 feet
3,856 m		 37°47′43″N 107°32′58″W
Cinnamon Pass[3][7] 12,640 feet
3,853 m		 37°56′02″N 107°32′16″W
Jones Pass[lower-alpha 8] 12,454 feet
3,796 m		 39°46′25″N 105°53′21″W
Hancock Pass[lower-alpha 8] 12,208 feet
3,721 m		 Forest Trail 266 (west)
Forest Trail 299 (east)		 38°37′15″N 106°22′27″W
Tincup Pass[lower-alpha 8] 12,154 feet
3,705 m[lower-alpha 11]		 Forest Trail 267 38°42′33″N 106°26′03″W
Webster Pass[lower-alpha 8] 12,140 feet
3,700 m		 39°31′52″N 105°49′58″W
Gunsight Pass 12,057 feet
3,675 m		 38°53′05″N 107°03′31″W
Napoleon Pass 12,034 feet
3,668 m		 Forest Trail 540 38°41′56″N 106°27′37″W
Tomichi Pass 11,962 feet
3,646 m		 Forest Trail 888 38°36′13″N 106°23′00″W
Hagerman Pass[lower-alpha 8] 11,925 feet
3,635 m[lower-alpha 11]		 former SH 104
(Carlton Tunnel)		 39°15′54″N 106°29′02″W
Weston Pass 11,921 feet
3,634 m		 39°07′53″N 106°10′56″W
Ophir Pass 11,789 feet
3,593 m		 37°51′02″N 107°46′46″W
Ptarmigan Pass 11,777 feet
3,590 m		 39°29′35″N 106°15′12″W
Rollins Pass[lower-alpha 8] 11,676 feet
3,559 m		 former SH 138 39°56′03″N 105°40′58″W
Georgia Pass 11,585 feet
3,531 m		 39°27′30″N 105°55′00″W
Paradise Divide 11,288 feet FS734 & Paradise Basin Rd

Gunnison Nat Forrest

 39.98830N 107.06522 W
Hayden Pass 10,712 feet
3,265 m		 38°17′35″N 105°51′02″W
Schofield Pass 10,707 feet
3,263 m		 former SH 327 39°00′54″N 107°02′48″W
Medano Pass 9,931 feet
3,027 m		 37°51′22″N 105°25′58″W
Squaw Pass 9,790 feet
2,984 m[lower-alpha 11]		 immediately south of SH 103 39°40′45″N 105°28′25″W
Black Sage Pass 9,721 feet
2,963 m		 Forest Road 887 38°29′26″N 106°27′06″W
Sangre de Cristo Pass 9,472 feet
2,887 m		 37°37′10″N 105°11′42″W
Arapaho Pass[lower-alpha 8] 8,953 feet
2,729 m		 40°23′06″N 106°28′21″W
Red Mountain Pass 8,245 feet
2,513 m		 40°58′59″N 105°56′12″W
Weston Pass and the southern Mosquito Range.

Mountain passes traversed by foot trails
Pass[lower-alpha 1] Elevation[lower-alpha 19] Trail Coordinates[lower-alpha 6]
Electric Pass[lower-alpha 21] 13,494 feet
4,113 m		 39°02′48″N 106°51′11″W
Elkhead Pass 13,245 feet
4,037 m		 38°57′06″N 106°22′02″W
The Keyhole 13,163 feet
4,012 m		 40°15′39″N 105°37′16″W
The Notch 13,035 feet
3,973 m		 40°15′15″N 105°36′49″W
Hermit Pass 13,015 feet
3,967 m		 38°05′41″N 105°39′17″W
Blue Lake Pass 12,969 feet
3,953 m		 37°59′52″N 107°47′43″W
Denver Pass 12,907 feet
3,934 m		 37°57′17″N 107°33′43″W
Triangle Pass 12,907 feet
3,934 m		 38°59′40″N 106°54′28″W
The Window 12,877 feet
3,925 m		 37°40′08″N 107°23′34″W
Trimble Pass 12,874 feet
3,924 m		 37°34′47″N 107°35′51″W
Red Mountain Pass[lower-alpha 8] 12,860 feet
3,920 m		 39°00′48″N 106°35′40″W
Fall Creek Pass 12,848 feet
3,916 m		 39°26′32″N 106°28′38″W
Conundrum Pass 12,779 feet
3,895 m		 39°00′26″N 106°54′34″W
McHenrys Notch 12,736 feet
3,882 m		 40°15′50″N 105°39′42″W
Coffeepot Pass 12,726 feet
3,879 m		 38°59′32″N 106°54′11″W
Sunnyside Saddle 12,677 feet
3,864 m		 37°54′26″N 107°37′08″W
Columbine Pass 12,674 feet
3,863 m		 37°35′56″N 107°36′12″W
Richmond Pass 12,667 feet
3,861 m		 37°56′50″N 107°42′09″W
Willow Pass 12,556 feet
3,827 m		 39°06′33″N 106°59′08″W
Whiskey Pass 12,549 feet
3,825 m		 former SH 152 37°12′08″N 105°10′03″W
Heckert Pass 12,546 feet
3,824 m		 39°07′25″N 107°02′31″W
Pawnee Pass[lower-alpha 8] 12,542 feet
3,823 m		 40°04′33″N 105°38′06″W
Venable Pass 12,539 feet
3,822 m		 38°03′56″N 105°37′32″W
Halfmoon Pass 12,523 feet
3,817 m		 37°54′03″N 106°47′03″W
Copper Pass 12,510 feet
3,813 m		 38°59′58″N 106°54′55″W
Stone Man Pass 12,506 feet
3,812 m		 40°15′34″N 105°39′10″W
Hunchback Pass 12,500 feet
3,810 m		 Continental Divide Trail 37°42′17″N 107°31′12″W
Buckskin Pass 12,462 feet
3,798 m		 39°06′07″N 106°59′31″W
Trail Rider Pass 12,421 feet
3,786 m		 39°06′17″N 107°02′56″W
Cony Pass 12,418 feet
3,785 m		 40°10′41″N 105°39′58″W
Frigid Air Pass 12,408 feet
3,782 m		 39°03′13″N 107°01′13″W
West Maroon Pass 12,408 feet
3,782 m		 39°02′09″N 106°59′51″W
The Saddle 12,398 feet
3,779 m		 40°28′45″N 105°39′25″W
Fancy Pass 12,398 feet
3,779 m		 39°24′38″N 106°30′23″W
Storm Pass 12,355 feet
3,766 m		 38°42′44″N 107°10′37″W
Lake Pass[lower-alpha 8] 12,218 feet
3,724 m		 38°59′49″N 106°33′43″W
Gunsight Pass 12,201 feet
3,719 m		 37°15′43″N 106°41′11″W
Gunsight Pass 12,185 feet
3,714 m		 Forest Trail 428 38°41′00″N 106°35′59″W
Ptarmigan Pass[lower-alpha 8] 12,168 feet
3,709 m		 40°18′38″N 105°42′04″W
Black Powder Pass[lower-alpha 8] 12,159 feet
3,706 m		 39°25′25″N 105°57′19″W
Chalk Creek Pass 12,139 feet
3,700 m		 Continental Divide Trail 38°36′23″N 106°21′02″W
Avalanche Pass 12,100 feet
3,688 m		 39°06′41″N 107°08′38″W
Granite Pass 12,083 feet
3,683 m		 40°16′28″N 105°36′20″W
Boulder-Grand Pass[lower-alpha 8] 12,077 feet
3,681 m		 40°13′28″N 105°40′09″W
French Pass[lower-alpha 8] 12,046 feet
3,672 m		 39°26′22″N 105°57′05″W
Searle Pass 12,034 feet
3,668 m		 Continental Divide Trail
Colorado Trail		 39°27′31″N 106°13′40″W
Kokomo Pass[lower-alpha 8] 12,027 feet
3,666 m		 Continental Divide Trail
Colorado Trail		 39°25′43″N 106°13′38″W
Browns Pass[lower-alpha 8] 11,998 feet
3,657 m		 38°51′14″N 106°21′34″W
Taylor Pass 11,929 feet
3,636 m		 39°01′13″N 106°45′20″W
Uneva Pass 11,922 feet
3,634 m		 39°32′46″N 106°11′00″W
Arapaho Pass[lower-alpha 8] 11,905 feet
3,629 m		 40°00′52″N 105°40′41″W
Eccles Pass 11,893 feet
3,625 m		 39°36′27″N 106°10′19″W
Rogers Pass[lower-alpha 8] 11,886 feet
3,623 m		 39°52′13″N 105°41′47″W
Buchanan Pass[lower-alpha 8] 11,837 feet
3,608 m		 40°07′52″N 105°37′49″W
Caribou Pass 11,804 feet
3,598 m		 40°01′12″N 105°41′27″W
Ptarmigan Pass 11,777 feet
3,590 m		 39°41′11″N 106°00′12″W
Vasquez Pass[lower-alpha 8] 11,693 feet
3,564 m		 39°47′16″N 105°49′45″W
Original Monarch Pass[lower-alpha 8] 11,532 feet
3,515 m		 former Monarch Pass Toll Road 38°30′41″N 106°20′49″W
Timberline Pass 11,484 feet
3,500 m		 40°22′32″N 105°40′20″W
Juniper Pass 11,040 feet
3,365 m		 immediately south of SH 103 39°40′20″N 105°33′54″W
Weminuche Pass 10,567 feet
3,221 m		 37°41′11″N 107°19′26″W
La Poudre Pass[lower-alpha 8] 10,175 feet
3,101 m[lower-alpha 11]		 40°28′36″N 105°49′24″W
Windy Pass 9,957 feet
3,035 m		 37°25′36″N 106°51′14″W
Mosca Pass 9,750 feet
2,972 m		 former SH 150 37°43′58″N 105°27′16″W

See also

Notes
  1. Pass name from the United States Geographic Names Information System except as noted.
  2. Maximum topographic elevation data from the Colorado Department of Transportation except as noted.
  3. Maximum grade data from the Colorado Department of Transportation except as noted.
  4. Road surface material information from the Colorado Department of Transportation except as noted.
  5. Route information from the Colorado Department of Transportation except as noted.
  6. World Geodetic System 1984 location coordinates from the United States Geographic Names Information System except as noted.
  7. Trail Ridge Road (U.S. Highway Route 34) crosses the Continental Divide at Milner Pass but reaches its highest point several miles northeast of the pass. Trail Ridge Road is the highest paved through highway in North America. Trail Ridge Road is normally closed from about October 15 through about May 25.
  8. This pass crosses the Continental Divide of the Americas.
  9. Cottonwood Pass is normally closed from about November 7 through about May 25.
  10. Independence Pass is normally closed from about November 7 through about May 25.
  11. Topographic elevation data from United States Geological Survey 1:24000 topographic map.
  12. The highest elevation in the Eisenhower Tunnel is a short distance inside the West Portal. The tunnel passes under the Continental Divide of the Americas a few miles west of Loveland Pass. The Eisenhower Tunnel is the highest elevation on the Interstate Highway System of the United States.
  13. The Grand Mesa Summit is the highest point on State Highway 65, the Grand Mesa Scenic and Historic Byway. Conditions can be quite severe in winter, though the road generally remains open.
  14. Kebler Pass is normally closed from about November 7 through about May 25.
  15. Raton Pass is the highest point on Interstate Highway Route 25. The pass is located 1,132 feet (345 m) south of the Colorado state line in the New Mexico. I-25 has an elevation of approximately 7,820 feet (2,384 m) at the state line.
  16. Highway name from the Colorado Department of Transportation.
  17. The Mount Evans Scenic Byway, Colorado State Highway Route 5, ends about one quarter mile (400 m) from the summit of Mount Evans. The highway is the highest paved road in North America. The highway is normally closed from about September 10 through about May 25, although access to Summit Lake at 12,836 feet (3,912 m) normally remains open until about September 30.
  18. The Pikes Peak Highway ends on the summit of Pikes Peak. Pikes Peak is the most visited mountain summit in North America. The highway remains open all year weather permitting.
  19. Topographic elevation data from the United States Geographic Names Information System except as noted.
  20. Argentine Pass is the highest road over the Continental Divide in North America.
  21. Electric Pass is the highest named pass in the Rocky Mountains of North America.

References
  1. "PIKES PEAK". NGS Data Sheet. National Geodetic Survey, National Oceanic and Atmospheric Administration, United States Department of Commerce. Retrieved January 21, 2015.
  2. "Image: 9330245523_63309fa6c8_z.jpg, (640 × 474 px)". i0.wp.com. Retrieved September 6, 2015.
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38.9972°N 105.5478°W / 38.9972; -105.5478 (State of Colorado)

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