1 ► South Dakota, Brown County, Columbia — Waterfowl —

On Sand Lake Dr., 0.2 miles east of County Highway 16, on the right when traveling east.

2 ► South Dakota, Brown County, Columbia — Sand Lake National Wildlife Refuge — Welcome to —

On Sand Lake Dr., 0.2 miles County Highway 16.

3 ► South Dakota, Brown County, Columbia — Sand Lake's Observation Tower — …A Bird's Eye View —

On Sand Lake Dr, 0.2 miles County Highway 16.

4 ► South Dakota, Brown County, Columbia — Songbirds — Neotropical Migrants —

On Sand Lake Dr., 0.2 miles County Highway 16, on the right when traveling east.

5 ► South Dakota, Brown County, Columbia — The View from the Top —

On Sand Lake Dr, 0.2 miles County Highway 16.

6 ► South Dakota, Brown County, Houghton — Sand Lake National Wildlife Refuge —

On County Route 7, 1.3 miles 400th Ave.., on the right when traveling east.

7 ► South Dakota, Brule County, Chamberlain, Chamberlain Township — The Plant Life — Chamberlain and the Lewis & Clark Expedition —

Near State Highway 50 south of Thunder Road, on the right when traveling south.

8 ► South Dakota, Charles Mix County, Pickstown, White Swan Township — A Gathering Place for Eagles —

9 ► South Dakota, Charles Mix County, Pickstown, White Swan Township — Missouri River —

10 ► South Dakota, Clay County, Vermillion — From Lewis and Clark to the Future —

On State Highway 19, 0.1 miles north of 312th Street, on the left when traveling north.

11 ► South Dakota, Clay County, Vermillion — Vermillion — June 24, 1984 —

On South Dakota Street, 1.5 miles south of State Highway 50, on the right when traveling south.

12 ► South Dakota, Clay County, Vermillion — Welcome to Cotton Park — Missouri National Recreational River Water Trail —

On South Dakota Street, 0.1 miles south of East Broadway Street, on the right when traveling south.

13 ► South Dakota, Clay County, Vermillion, Spirit Mound Township — Hill of Chalk — Missouri National Recreational River —

Near State Highway 19 north of 312th Street, on the left when traveling north.

14 ► South Dakota, Custer County, Custer — Fire Tower Lookouts —

Near Mount Coolidge Lookout Road near State Highway 87.

15 ► South Dakota, Custer County, Custer — Jasper Fire —

On Mt. Rushmore Road (U.S. 16) 0.2 miles west of Road 282, on the left when traveling west.

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16 ► South Dakota, Custer County, Custer — Jasper vs. Jewel — Seeking Answers to Questions About Caves and Wildfires —

On U.S. 16 at Jewel Cave National Monument Entrance Road, on the left when traveling west on U.S. 16.

17 ► South Dakota, Custer County, Custer — Prescribed Fire — An Important Tool to Tame Wildfire —

On U.S. 16 at Jewel Cave National Monument Entrance Road, on the left when traveling west on U.S. 16.

18 ► South Dakota, Custer County, Hot Springs — Stephen Tyng Mather — July 4, 1867 — Jan. 22, 1930 —

Near Wind Cave Road, 1 mile south of U.S. 385.

19 ► South Dakota, Custer County, Hot Springs — Vanishing Prairie — Wind Cave National Park —

On U.S. 385, 3.9 miles north of 7-11 Road (County Road 101), on the right when traveling north.

20 ► South Dakota, Custer County, Pringle — Discover the Black Hills National Forest —

On State Highway 89, 0.7 miles north of Prairie Schooner Road (County Road 318), on the right when traveling north.

21 ► South Dakota, Day County, Waubay — Changes on the Land —

On Waubay Refuge Entrance Road.

22 ► South Dakota, Day County, Waubay — Potholes and Prairie —

On Waubay Refuge Entrance Road.

23 ► South Dakota, Day County, Waubay — Waubay National Wildlife Refuge — Welcome to —

On Waubay Refuge Entrance Road.

24 ► South Dakota, Day County, Waubay — Waubay Wetland Management District —

On Waubay Refuge Entrance Road.

25 ► South Dakota, Dewey County, Gettysburg — Nača Inyanska Unwayu Onihan Owakpamni Tanni Oasnikiye — Naca' Monument and Old Agency Park — CRST Flora Stewardship Project —

On U.S. 212, 1.2 miles north of Old U.S. Highway 212, on the right when traveling east.

26 ► South Dakota, Fall River County, Edgemont — Battle the Blaze — White Draw Fire —

On U.S. 18, 0.9 miles south of County Road 18S, on the right when traveling south.

27 ► South Dakota, Fall River County, Edgemont — MAFFS 7 — Modular Airborne Fire Fighting System —

On U.S. 18, 0.9 miles south of County Road 18S, on the right when traveling south.

28 ► South Dakota, Fall River County, Hot Springs — Fire on the Edge — Where the Prairie Meets the Forest — Black Hills National Forest —

On State Highway 71, 0.1 miles south of Cascade Trail.

29 ► South Dakota, Harding County, Reva — The Castles —

Near Forest Road 31261, 0.2 miles south of Forest Road 3126.

30 ► South Dakota, Hughes County, Pierre — Welcome to Steamboat Park! —

On South Poplar Street, 0.2 miles south of West Missouri Avenue, on the left when traveling south.

31 ► South Dakota, Jackson County, Interior — A 75-Million-Year Walk —

On State Highway 240.

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32 ► South Dakota, Jackson County, Interior — Bands of Time —

On State Highway 240.

33 ► South Dakota, Jackson County, Interior — Dying to Become a Fossil —

On State Highway 240.

34 ► South Dakota, Jackson County, Interior — Reading the Rocks —

On State Highway 240.

35 ► South Dakota, Jackson County, Interior — See Ya Later, Alligator —

On State Highway 240.

36 ► South Dakota, Jackson County, Interior — Titanic Discovery —

On State Highway 240.

37 ► South Dakota, Jackson County, Interior — Under the Sea —

On State Highway 234.

38 ► South Dakota, Jackson County, Interior — What a Find! —

On State Highway 240.

39 ► South Dakota, Jackson County, Wall — Fight for Survival —

On State Highway 240.

40 ► South Dakota, Jackson County, Wall — Off to the Races —

On State Highway 240.

41 ► South Dakota, Lawrence County, Deadwood — Mining & Logging — Homestake: Timber supply closely related to gold production —

Near Mount Roosevelt Road east of Stage Run Road.

42 ► South Dakota, Lawrence County, Spearfish — Spearfish Canyon Flora and Fauna — A View from the Wild Side —

On Spearfish Canyon Highway (U.S. 14A) 6 miles Business 90, on the left when traveling south.

43 ► South Dakota, Lincoln County, Sioux Falls — 1300s — Bison Roamed the Prairies —

Near 480th Avenue (County Highway 135) 0.2 miles south of 269th Street.

44 ► South Dakota, Lincoln County, Sioux Falls — The Missing Bison —

Near 480th Avenue (County Highway 135) 0.2 miles south of 269th Street (County Highway 102).

45 ► South Dakota, Lincoln County, Sioux Falls, Springdale Township — A Landscape Shaped by Glaciers —

Near 480th Avenue (County Highway 135) 0.2 miles south of 269th Street (County Highway 102).

46 ► South Dakota, McPherson County, Leola — Dan Ashe Waterfowl Production Area — Honoring a Commitment to Conservation of the Prairie Pothole Region —

On State Highway 10, 1 mile east of 350 Ave, on the right when traveling west.

47 ► South Dakota, McPherson County, Leola — Prairie Potholes — A haven for Waterfowl —

On State Highway 10, 1 mile east of 350 Ave, on the right when traveling west.

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48 ► South Dakota, McPherson County, Leola — Samuel H. Ordway, Jr. Memorial Prairie —

On State Highway 10 at 355 Ave on State Highway 10.

49 ► South Dakota, Minnehaha County, Crooks — Peter Byg, Prairie Fire Victim —

On 257th Street, 0.2 miles west of 468th Avenue (County Road 141), on the right when traveling west.

50 ► South Dakota, Minnehaha County, Montrose — Doug Horsted —

On 249th Street, 1.4 miles east of 453rd Avenue, on the right when traveling east.

51 ► South Dakota, Minnehaha County, Sioux Falls — 1870s' Grasshopper Invasions —

On West 22nd Street, 0.1 miles west of South Western Avenue, on the right when traveling east.

52 ► South Dakota, Minnehaha County, Sioux Falls — Foster Children Tragedy —

On Benson Road at LaMesa Drive, on the right when traveling east on Benson Road.

53 ► South Dakota, Minnehaha County, Sioux Falls — Inland Seas —

Near North Weber Avenue, 0.2 miles south of East Falls Park Drive.

54 ► South Dakota, Minnehaha County, Sioux Falls — Sioux Falls — 1950-2019 —

Near East 26th Street, 0.2 miles west of South Southeastern Avenue, on the right when traveling west.

55 ► South Dakota, Minnehaha County, Sioux Falls — The Great Bend —

On West 57th Street north of Old Yankton Circle, on the right when traveling west.

56 ► South Dakota, Minnehaha County, Sioux Falls, North End East — Legacy of Ice and Rock —

On East Falls Park Drive.

57 ► South Dakota, Minnehaha County, Sioux Falls, North End East — Monarch of the Plains —

58 ► South Dakota, Moody County, Flandreau — Flandreau — April 20, 1969 —

On Water Street north of East Pipestone Avenue, on the left when traveling north.

59 ► South Dakota, Pennington County, Hill City — Multiple Purpose Management in Action —

On U.S. 385 at Custer Crossing Road, on the right when traveling south on U.S. 385.

60 ► South Dakota, Pennington County, Keystone — Peter Norbeck —

On Iron Mountain Road (U.S. 16A).

61 ► South Dakota, Perkins County, Shadehill — Great Plains Weather: Land of Extremes —

Near Forest Road 5740, 1 mile north of Forest Road 5626.

62 ► South Dakota, Union County, Elk Point — 404 — Grasshopper Cross —

On County Road 1B at 479th Avenue, on the right when traveling north on County Road 1B.

63 ► South Dakota, Yankton County, Yankton — Sculpting the Landscape — Missouri National Recreational River —

Near Levee Street, 0.1 miles south of Pearl Street, on the right when traveling east.

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