Notable US national monuments, seashores, and other protected federal lands beyond the national parks proper, matched with one defining feature each.
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- Devil's Tower, Wyoming
- Columnar jointed volcanic plug rising 1,267 feet above the surrounding plain
- Hovenweep, Utah/Colorado
- Ancestral Puebloan tower ruins from the 12th century
- Natural Bridges, Utah
- Three naturally formed stone arches carved by water erosion
- Dinosaur, Colorado/Utah
- Jurassic-age fossil remains exposed in canyon walls
- Kodachrome Basin, Utah
- Colorful pipe-like rock formations rising from red soil
- Grand Staircase-Escalante, Utah
- Vast landscape of layered, colorful canyon systems and plateaus
- Kasha-Katuwe Tent Rocks, New Mexico
- Cone-shaped volcanic tuff formations resembling teepees
- Bandelier, New Mexico
- Ancestral Puebloan cliff dwellings and kiva ruins in narrow canyon
- Petroglyph, New Mexico
- Thousands of indigenous rock carvings on dark volcanic basalt
- Valley of Fires, New Mexico
- 5,000-year-old lava flow field with dark volcanic rock
- Organ Mountains-Desert Peaks, New Mexico
- Limestone mountain range with dramatic vertical formations
- Wupatki, Arizona
- Pueblo ruins perched on red volcanic terrain
- Sunset Crater, Arizona
- Cinder cone volcano formed by an eruption in 1064 CE
- Walnut Canyon, Arizona
- Cliff dwellings nestled in rock alcoves along canyon walls
- Montezuma Castle, Arizona
- Five-story limestone cliff dwelling built into a canyon wall
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