Browse historic site guides

Lock and Dam No. 19

Bald Eagles and Bird Watching

You might spot Northern Cardinal, Eastern Pondhawk, and Common Watersnake.

Lock and Dam No. 20

Bald Eagles and Bird Watching

You might spot American Sweetgum, Sugar Maple, and Eastern Redcedar.

Lock and Dam No. 21

Bald Eagles and Bird Watching

You might spot Ivory Gull, Bald Eagle, and Eastern Fox Squirrel.

Lock and Dam No. 22

Bald Eagles and Bird Watching

You might spot Snapping Turtle, Cardinal Flower, and American Bullfrog.

Lock and Dam No. 24

Bald Eagles and Bird Watching

You might spot Bald Eagle, Box Elder, and Chicory.

Lower Cushman Dam

Engineering Marvel. and Family Friendly

You might spot Barrow's Goldeneye and Pacific Banana Slug.

Marine Corps Base Quantico

Accessible and Educational

You might spot Tulip Morel, American Sweetgum, and American Tuliptree.

Mariscal Mine

Archaeological Site and Big Bend National Park

You might spot Texas Rainbow Cactus, Ocotillo, and Greater Earless Lizard.

Marked Tree Lock and Siphons

Arkansas History and Bird Watching

You might spot Green Treefrog, Blue-Fronted Dancer, and Question Mark.

Menor's Ferry

Accessible (partially) and Cultural Heritage

You might spot Moose, Uinta Ground Squirrel, and Arrowleaf Balsamroot.

Mesa Grande

Ancient Ruins and Archaeology

You might spot Great-Tailed Grackle, Stinknet, and Northern Mockingbird.

Mission Hills

Architectural Tours and Family Friendly

You might spot Western Fence Lizard, Duck, and Bee.

Mission Santa Cruz

Accessible and California Missions

You might spot Slender Banana Slug, Western Gull, and Ochre Sea Star.

Monroe Avenue Commercial Buildings

City Park and Detroit History

You might spot Monarch, Canada Goose, and Eastern Gray Squirrel.

Morrill County Courthouse

Architectural Photography and Bridgeport Nebraska.

You might spot Showy Milkweed and Straight-Lined Wave.

Morris Canal

Accessible Trails. and Biking

You might spot Striped Wintergreen and Partridgeberry.

Mount Hope Cemetery

Architecture and Garden Cemetery

You might spot Eastern Skunk Cabbage and Painted Turtle.

Mount Kisco Municipal Complex

Architecture and Civic Buildings

You might spot Common Eastern Bumble Bee and Eastern Skunk Cabbage.

Naval Air Station North Island

Aviation and Coastal Views

You might spot Western Gull, Western Fence Lizard, and Brown Pelican.

Nine Mile Dam

Architecture and Bird Watching

You might spot Duck, Common Alkanet, and Arrowleaf Balsamroot.

North Conway station

Accessible Tourism (limited) and Fall Foliage

You might spot American Toad, Spongy Moth, and Painted Trillium.

Oakwood Cemetery

Architectural History and Austin History

You might spot Great-Tailed Grackle and Eastern Fox Squirrel.

Old Borges Ranch

Educational and Family Friendly

You might spot Western Fence Lizard and Acorn Woodpecker.

P Ranch

Bird Watching and Historic Ranch

You might spot Mule Deer, Song Sparrow, and Northern Yellow Warbler.

Pawnee County Courthouse

Architecture and Classical Revival

You might spot Wabash Pigtoe, Three-Ridge Mussel, and Creeper.

Peter Roose Homestead

Family Friendly and Hiking

You might spot Purple Shore Crab, Western Bunchberry, and Mule Deer.

Riverside Cemetery

Architectural Interest and Civil War History

You might spot Eastern Fox Squirrel, Bold Jumping Spider, and Bee.

Rutherfurd Hall

Architectural Landmark and Cultural Center

You might spot Striped Wintergreen and American Wintergreen.

Ryan House and Lost Horse Well

You might spot Western Joshua Tree and Kingcup Cactus.

Saint Leo Abbey

Benedictine and Catholic

You might spot Resurrection Fern, Spanish Moss, and Brown Anole.

Santeetlah Dam

Camping and Family Friendly

You might spot Pipevine Swallowtail, Little Sweet Betsy, and Black Bear.

Savannah–Ogeechee Canal

You might spot Anole, Pond Slider, and Spanish Moss.

Schuylkill Canal

Bird Watching and Family Friendly

You might spot Mourning Dove, Spotted Lanternfly, and White-Tailed Deer.

Sheridan County Courthouse

Architectural Heritage and Civic Architecture

You might spot Prairie Falcon, Vulture, and Canada Goose.

Sioux County Courthouse

Architecture and Classical Revival

You might spot Nine-Spotted Lady Beetle and Convergent Lady Beetle.

Sod House Ranch

Bird Watching and Cultural Heritage

You might spot Belding's Ground Squirrel and Yellow-Headed Blackbird.

South Hadley Canal

You might spot Common Eastern Bumble Bee and Eastern Gray Squirrel.

St. Mary's Catholic Church

Architectural and Catholic Church

You might spot Purple Loosestrife and Great Blue Lobelia.

Starved Rock Lock and Dam

Bald Eagles and Bird Watching

You might spot Snakewort and Sharp-Lobed Hepatica.

Stratton's Independence Mine and Mill

Colorado History and Gold Rush

You might spot Great Basin Bristlecone Pine and Mule Deer.

Watertown Arsenal

Architectural History and Biking

You might spot Common Eastern Bumble Bee, Bee, and Eastern Gray Squirrel.