1 ► Colorado, Adams County, Commerce City — Habitat for Wildlife - A Rich History —

Near Gateway Road, 0.7 miles north of Prairie Parkway (East 64th Avenue), on the left when traveling east.

2 ► Colorado, Adams County, Commerce City — Headquarters Area —

On East 72nd Avenue near Kenton Street, on the left when traveling east.

3 ► Colorado, Adams County, Commerce City — Headquarters for a New Mission —

On East 72nd Avenue, on the left when traveling east.

4 ► Colorado, Adams County, Commerce City — On This Site Stood the "White House" —

On East 72nd Avenue, on the left when traveling east.

5 ► Colorado, Adams County, Commerce City — Rocky Mountain Arsenal National Wildlife Refuge —

Near Havana Street (Wildlife Drive), 0.6 miles north of East 64th Avenue (Wildlife Drive), on the right when traveling north.

6 ► Colorado, Adams County, Commerce City — The Fourteeners —

Near Gateway Road, 0.7 miles north of Prairie Parkway (East 64th Avenue), on the left when traveling east.

7 ► Colorado, Adams County, Commerce City — Where's the Water? —

Near Gateway Road, 0.7 miles north of Prairie Parkway (East 64th Avenue), on the left when traveling east.

8 ► Colorado, Alamosa County, Alamosa — "Old Mose" — The King of the Grizzlies —

On 1st Street at Edgemont Boulevard, on the left when traveling east on 1st Street.

9 ► Colorado, Alamosa County, Alamosa — Alamosa —

10 ► Colorado, Alamosa County, Alamosa — Alamosa County —

11 ► Colorado, Alamosa County, Alamosa — All Aboard for Alamosa! —

On Denver Avenue/Broadway Avenue (U.S. 160) at 4th Street, on the left when traveling north on Denver Avenue/Broadway Avenue.

12 ► Colorado, Alamosa County, Blanca — Lt. Zebulon Pike's Southwestern Expedition — 1806 - 7 —

On State Highway 150, 0.2 miles north of U.S. 160, on the right when traveling north.

13 ► Colorado, Alamosa County, Great Sand Dunes National Park and Preserve — A Landmark for People — Great Sand Dunes National Park and Preserve — National Park Service, U.S. Department of the Interior —

Near Highway 150.

14 ► Colorado, Alamosa County, Mosca — "Totally Unique and Unexpected" — Great Sand Dunes National Park and Preserve — National Park Service, U.S. Department of the Interior —

Near Highway 150 near Pinyon Circle.

15 ► Colorado, Alamosa County, Mosca — L.B. "Bill" Casselman — Dedicated to —

On Lane 6N, 1.2 miles west of State Highway 150, on the left when traveling west.

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16 ► Colorado, Alamosa County, Mosca — Lt. Zebulon Pike's Southwestern Expedition — 1806-7 —

On Lane 6N east of State Highway 17, on the left when traveling east.

17 ► Colorado, Alamosa County, Mosca — Sangre de Cristo Ecosystem — Great Sand Dunes National Park and Preserve —

Near Highway 150.

18 ► Colorado, Alamosa County, Mosca — Stepping into Wilderness — Great Sand Dunes National Park and Preserve — National Park Service, U.S. Department of the Interior —

Near Highway 150.

19 ► Colorado, Alamosa County, Mosca — The Mountain Barrier —

Near Highway 150.

20 ► Colorado, Alamosa County, Mosca — Understanding the Great Sand Dunes System: the Sabkha —

On Lane 6N, 1.2 miles west of State Highway 150, on the left when traveling west.

21 ► Colorado, Boulder County, Boulder — At the Foot of The Slabs —

On Bluebell Road, 0.1 miles south of Kinnikinic, on the right when traveling south.

22 ► Colorado, Chaffee County, Nathrop — Peaks to Pastures — Collegiate Peaks Scenic and Historic Byway —

On U.S. 285, 2 miles south of Chalk Creek Drive, on the right when traveling south.

23 ► Colorado, Chaffee County, Nathrop — Valley Ranching —

On U.S. 285, 2 miles south of Chalk Creek Drive, on the right when traveling south.

24 ► Colorado, Chaffee County, Nathrop — Whose Water Is It? —

On U.S. 285, 2 miles south of Chalk Creek Drive, on the right when traveling south.

25 ► Colorado, Custer County, Greenwood — Cliffhangers and Headbangers —

On Colorado 96, 0.4 miles west of County Road 387, on the right when traveling west.

26 ► Colorado, Dolores County, Dove Creek — Dove Creek Country —

On U.S. 491 at Guyrene Street, on the right when traveling west on U.S. 491.

27 ► Colorado, Dolores County, Dove Creek — Gunnison Sage Grouse —

On U.S. 491 at Guyrene Street, on the right when traveling west on U.S. 491.

28 ► Colorado, El Paso County, Colorado Springs, Cascade — A Look From The Top —

On Pikes Peak Toll Road.

29 ► Colorado, El Paso County, Colorado Springs, Cascade — Forests Without Fire —

On Pike's Peak Toll Road.

30 ► Colorado, El Paso County, Colorado Springs, Cascade — Pick a Climate —

On Pike's Peak Toll Road.

31 ► Colorado, El Paso County, Colorado Springs, Cascade — Take a Closer Look...Foothills Life Zone —

On Pike's Peak Toll Road.

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32 ► Colorado, El Paso County, Colorado Springs, Cascade — The Making of America's Mountain —

On Pike's Peak Toll Road.

33 ► Colorado, El Paso County, United States Air Force Academy — 55th Reconnaissance Squadron — Long Range Weather — B-24s —

34 ► Colorado, El Paso County, United States Air Force Academy — Abert's Squirrel — (Sciurus aberti) —

35 ► Colorado, El Paso County, United States Air Force Academy — An Ancient Geologic Past — United States Air Force Academy —

36 ► Colorado, El Paso County, United States Air Force Academy — Forest Management — United States Air Force Academy —

37 ► Colorado, El Paso County, United States Air Force Academy — Fuel Hazard Mitigation — United States Air Force Academy —

38 ► Colorado, El Paso County, United States Air Force Academy — Landscape Fire Ecology — United States Air Force Academy —

39 ► Colorado, El Paso County, United States Air Force Academy — Scrub (Gambel's) Oak — (Quercus gambelii) —

40 ► Colorado, Fremont County, Cañon City — The Banana Belt of Colorado —

On Main Street east of South 4th Street, on the right when traveling east.

41 ► Colorado, Fremont County, Penrose — Arkansas River Valley

On U.S. 50, 0.2 miles east of Phantom Canyon Road, on the right when traveling west. Reported damaged.

42 ► Colorado, Fremont County, Penrose — Arkansas Valley Country —

On U.S. 50, 0.2 miles east of Phantom Canyon Road (County Road 67), on the right when traveling west.

43 ► Colorado, Grand County, Grand Lake — The East Troublesome Fire —

Near U.S. 34.

44 ► Colorado, Gunnison County, Gunnison — Ho For The Gunnison! —

On Tomichi Avenue (U.S. 50) east of Teller Street, on the left when traveling east.

45 ► Colorado, Gunnison County, Gunnison — If You Only Knew —

On U.S. 50, on the right when traveling west.

46 ► Colorado, Gunnison County, Gunnison — King Coal —

47 ► Colorado, Gunnison County, Gunnison — Two Great Trains —

On Tomichi Avenue (U.S. 50) east of Teller Street, on the left when traveling east.

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48 ► Colorado, Jefferson County, Golden — Castle Rock —

49 ► Colorado, Jefferson County, Golden — Late Jurassic Time —

50 ► Colorado, Jefferson County, Golden — Play in the Wind —

On Lariat Loop Road.

51 ► Colorado, Jefferson County, Golden — Triceratops Trail —

On 6th Avenue (U.S. 6) 0.5 miles south of 19th Street, on the right when traveling north.

52 ► Colorado, Jefferson County, Golden — Water Carves Canyons —

Near Lariat Loop Road.

53 ► Colorado, Jefferson County, Golden, Lakota Hills — Bird Track —

54 ► Colorado, Jefferson County, Golden, Lakota Hills — Palm Fronds —

55 ► Colorado, Jefferson County, Golden, Lakota Hills — Triceratops Tracks —

56 ► Colorado, La Plata County, Durango — Community of Heroes —

On Main Avenue (U.S. 550) at 26th Street, on the right when traveling north on Main Avenue.

57 ► Colorado, La Plata County, Durango — Durango - Silverton Narrow Gauge Railroad —

On Main Avenue at 5th Street, on the right when traveling south on Main Avenue.

58 ► Colorado, La Plata County, Durango — Seasons of Healing —

On Main Avenue (U.S. 550) at 26th Street, on the right when traveling north on Main Avenue.

59 ► Colorado, La Plata County, Durango — Summer of Flames —

On Main Avenue (U.S. 550) at 26th Street, on the right when traveling north on Main Avenue.

60 ► Colorado, Lake County, Climax — Climax — Where Colorado History is Still Being Made —

Near State Highway 91, 11 miles south of Interstate 70, on the right when traveling south.

61 ► Colorado, Lake County, Climax — The Highest Compost Pile in the World —

Near State Highway 91, 11 miles south of Interstate 70, on the right when traveling south.

62 ► Colorado, Larimer County, Bellvue — Bellvue Hydraulic Irrigation Laboratory —

On Rist Canyon Road, 1.5 miles west of US 287 B (U.S. 287 B), on the right when traveling west.

63 ► Colorado, Larimer County, Estes Park — Rocky Mountain’s “Parks” —

On Fall River Road, on the left when traveling west.

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64 ► Colorado, Larimer County, Fort Collins — The Historic Fort Collins Weather Station — National Weather Service Cooperative Station 05-3005 —

Near North Drive, 0.1 miles east of Meridian Avenue.

65 ► Colorado, Larimer County, Rocky Mountain National Park — Stephen Tyng Mather — July. 4. 1867. - Jan. 22. 1930. —

Near Moraine Avenue, 0.1 miles west of Mills Drive.

66 ► Colorado, Mesa County, Colorado National Monument — Climbing Independence —

67 ► Colorado, Mesa County, Colorado National Monument — John Otto —

68 ► Colorado, Mesa County, Colorado National Monument — The Shape of Independence —

69 ► Colorado, Mesa County, Colorado National Monument — Upper Serpents Trail — Serpents Trail to Devils Kitchen Trailhead —

On Rim Rock Drive, on the left when traveling west.

70 ► Colorado, Mesa County, Fruita — Dinosaur Diamond — A Dual-State National Scenic Byway —

71 ► Colorado, Mineral County, South Fork — Continental Divide Trail —

On U.S. 160, 0.2 miles west of County Road 402, on the left when traveling west.

72 ► Colorado, Montezuma County, Cortez — Canyons of the Ancients National Monument —

On Mildred Road north of Main Street (U.S. 160), on the left when traveling north.

73 ► Colorado, Montezuma County, Cortez — Four Corners Resettled — Community Connections —

On Mildred Road north of Main Street (U.S. 160), on the left when traveling north.

74 ► Colorado, Montezuma County, Cortez — The Native Americans — 12,000 Years of History —

On Mildred Road north of Main Street (U.S. 160), on the left when traveling north.

75 ► Colorado, Montezuma County, Cortez — Welcome to the San Juan Skyway —

On Mildred Road north of Main Street (U.S. 160), on the left when traveling north.

76 ► Colorado, Montezuma County, Mancos — Cortez —

Near U.S. 160, on the right when traveling west.

77 ► Colorado, Montezuma County, Mancos — Southwest Survival —

Near U.S. 160, on the right when traveling west.

78 ► Colorado, Montezuma County, Mesa Verde National Park — A Monument to Time —

Near State Highway 10, 3 miles west of Moccasin Mesa Road, on the right when traveling west.

79 ► Colorado, Montezuma County, Mesa Verde National Park — Natural Seep Springs —

Near State Highway 10, 3 miles west of Moccasin Mesa Road, on the right when traveling west.

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80 ► Colorado, Montrose County, Cimarron — All Aboard —

On Morrow Point Dam Road, 1 mile north of U.S. 50, on the left when traveling north.

81 ► Colorado, Montrose County, Cimarron — Geography Sets the Stage —

Near Morrow Point Dam Road, 0.1 miles U.S. 50, on the right when traveling north.

82 ► Colorado, Montrose County, Cimarron — Working on the Railroad —

On Morrow Point Dam Road, 0.1 miles north of U.S. 50, on the right when traveling north.

83 ► Colorado, Montrose County, Montrose — The Ute Way of Life — Living in Harmony with Nature —

On Chipeta Road at U.S. 550, on the right when traveling north on Chipeta Road.

84 ► Colorado, Morgan County, Fort Morgan — Watching River Wildlife —

On State Highway 52, 0.1 miles north of Interstate 76, on the right when traveling north.

85 ► Colorado, Otero County, La Junta — A Ribbon Across the Plains —

Near State Highway 194 east of County Highway 35.

86 ► Colorado, Ouray County, Ouray — Mine Reclamation Improves Water Quality —

On Million Dollar Highway (U.S. 550) 2 miles south of County Highway 30, on the right when traveling north.

87 ► Colorado, Ouray County, Ouray — Reclaiming the Land —

On Million Dollar Highway (U.S. 550) 2 miles south of County Highway 31, on the left when traveling north.

88 ► Colorado, Park County, Fairplay — Caring for a Great Place — South Park Heritage Resource Area —

Near 4th Street at Main Street (State Highway 9).

89 ► Colorado, Park County, Lake George — Bayou Salado "Salt Marsh" —

Near U.S. 24.

90 ► Colorado, Park County, Lake George — Enough Water for Everyone? —

Near U.S. 24.

91 ► Colorado, Park County, Lake George — Fire Nature's Own Cleanser —

Near U.S. 24.

92 ► Colorado, Park County, Lake George — Pikes Peak and National Forests —

Near U.S. 24.

93 ► Colorado, Pitkin County, Aspen — Finding Gold — Surviving in Independence —

Near Colorado 82, 5.6 miles east of County Road 23.

94 ► Colorado, Pitkin County, Aspen — Independence Pass Foundation —

On Colorado 82, on the left when traveling west.

95 ► Colorado, Pitkin County, Aspen — The Continental Divide —

On Colorado 82, on the left when traveling west.

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96 ► Colorado, Pitkin County, Aspen — The Environment —

On Colorado 82, on the left when traveling west.

97 ► Colorado, Rio Grande County, Del Norte — Fremont Campsite —

On Grand Avenue (U.S. 160) at Oak Street (State Highway 112), on the left when traveling east on Grand Avenue.

98 ► Colorado, Rio Grande County, South Fork — Rio Grande — A River of Life —

99 ► Colorado, Routt County, Hayden — Range Lands —

On U.S. 40 at milepost 100.5, on the right when traveling east.

100 ► Colorado, San Juan County, Silverton — Mayflower Mill Tailing Ponds —

On County Highway 2, 0.4 miles west of County Highway 52, on the right when traveling east.

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