Natural feature
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Badwater (Inyo County, California)
Lowest point in North America at 282 feet below sea level
Beacon Rock (Skamania County, Washington)
848 foot high basalt monolith
Beartown Rocks (Jefferson County, Pennsylvania)
Natural overlook in Clear Creek State Park
Bell Smith Springs (Pope County, Illinois)
Amazing collection of rock formations, stone arches.
Bergen Swamp (Genesee County, New York)
2,000 acre swamp and nature preserve, a National Natural Landmark
Big Mine Run Geyser (Schuylkill County, Pennsylvania)
Man-made geyser for Centralia-area coal mine in Ashland.
Cape Mendocino (Humboldt County, California)
Westernmost point in the state of California
Descanso Gardens (Los Angeles County, California)
Marker noting the location of a historic oak tree.
Dundee Mountain (Fond du Lac County, Wisconsin)
The tallest kame in the Kettle Moraine State Forest
El Capitan (Mariposa County, California)
Display about the El Capitan rock formation.
Glassy Mountain (Pickens County, South Carolina)
Strking Mountain in Pickens County, SC
Goose Lake (Modoc County, California)
147 square mile alkaline lake
Grandad Bluff (La Crosse County, Wisconsin)
A 590 foot tall mesa overlooking the CIty of La Crosse and the Mississippi River Valley
Hillside (Plymouth County, Massachusetts)
Hogback Mountain (Greenville County, South Carolina)
Predominant Mountain Feature in Greenville County, SC
Horicon Marsh (Fond du Lac County, Wisconsin)
31,653 acre marshland along the Rock River
Horicon Marsh (Dodge County, Wisconsin)
31,653 acre marshland along the Rock River
Immortal Tree (Humboldt County, California)
Coastal Redwood (Sequoia Sempervirens) 950 - 1000 year old
Ionia Volcano (Dixon County, Nebraska)
Historic site on the Lewis & Clark trail
Jug Rock (Martin County, Indiana)
Natural Rock Formation
Lake Henshaw (San Diego County, California)
Irrigation reservoir constructed in 1923
Looking Glass Rock (Transylvania County, North Carolina)
Natural landmark - pluton monolith in the Appalachian Mountains of western North Carolina
Lost Hill (Scott County, Missouri)
Isolated hill and rock outcroppings along Route M west of Scott City
Lost River Cave and Valley (Warren County, Kentucky)
Ancient Cave Valley with bluehole river with various uses since prehistoric times.
Malheur Butte (Malheur County, Oregon)
Extinct volcanic plug 2,661 feet in elevation
Marengo Cave (Crawford County, Indiana)
The cave offers two walking tours, gemstone mining, a maze crawl, gift shop, walking trails and picnic grounds.
Morro Rock (San Luis Obispo County, California)
581' tall volcanic plug located at the entrance to Morro Bay
Mount Diablo (Contra Costa County, California)
Initial Point for Northern California & Nevada Land Surveys
Mount Hood (Clackamas County, Oregon)
11,249' volcanic mountain peak, highest point in Oregon
Mount Mitchell (Yancey County, North Carolina)
Highest point in North Carolina and highest point in US east of the Mississippi River
Mount St.Helens (Skamania County, Washington)
8,363' high active volcano in the Cascade Range
Natural Dam (Mariposa County, California)
Display about the formation of Mirror Lake
Pilot Mountain (Surry County, North Carolina)
Mountain used by settlers for navigation.
Portuguese Bend (Los Angeles County, California)
Description of the unique geology of the area.
Raven Rock (Harnett County, North Carolina)
Rock formation on piedmont fall line of Cape Fear River
Reelfoot Lake (Lake County, Tennessee)
Formed after New Madrid Earthquake
Sugar Loaf (Winona County, Minnesota)
Named for the shape that sugar was sold in back in the 19th Century
Table Rock (Pickens County, South Carolina)
Natural bald mountain in the Carolina foothills
The Gulf (Wayne County, Missouri)
Collapsed cave and underground lake southwest of Mill Spring
Timm's Hill (Price County, Wisconsin)
Highest natural point in Wisconsin
Tree Rock (Albany County, Wyoming)
A small pine tree, growing out of a pre-Cambrian rock on Sherman Hill
Two Sisters Rock (Walla Walla County, Washington)
449' basalt formation resulting from the erosion by the Missoula floods circa 10,000 - 13000 BC
Van Hise Rock (Sauk County, Wisconsin)
A monolith of Baraboo Quartzite, a destination for geologists and students from around the world
Wallula Gap (Walla Walla County, Washington)
National Natural Landmark designated in 1980
Yosemite Valley (Mariposa County, California)
California State Historical Landmark about Yosemite Valley