Along the western side of the Colorado River Valley between Blythe, California, and Parker, Arizona, the land slopes where it meets the Big Maria Mountains to a flat expanse of undeveloped desert.

Near the lower Colorado River in eastern California, the Blythe Intaglios are giant designs, man-made long ago by engraving, tamping or scraping away the desert pavement, thus exposing the lighter ...

You might have seen aerial photos of geoglyphs in Peru and Chile or even those in Great Britain and Australia, but we have equivalent cultural treasures here in the United States. A geoglyph is ...

Alfredo Acosta Figueroa in California’s Palo Verde Valley, where ancient geoglyphs are threatened by huge solar projects. One of the Blythe Giant Intaglios, which was fenced for protection after it ...

The Blythe intaglios were created on the desert floor hundreds if not thousands of years ago by native people for an unknown reason. The tribes view this land as sacred and want to preserve it for ...

The figures scratched into the earth north of Blythe, Calif., remain a mystery. When were they carved and why? They are best seen from the air, but they also can be seen from the ground, by driving ...

The three human figures and two animals that make up the Blythe Geoglyphs - or Blythe Giant Intaglios - are enormous. So big in fact, that they can’t be fully appreciated from the ground. But the ...

After a rough ride through narrow desert washes, Alfredo Figueroa came to a clearing and ordered the vehicles to halt. The giants were waiting. Figueroa strode briskly across the plain. Before him, ...

On a recent adventure, I stopped at a gas station and started filling the tank. A gentleman at a nearby pump smiled over at me. Actually, I believe he was smiling, since the corner of his eyes ...

From the ancient pyramids in Egypt to the grand stone heads of Easter Island to the Stonehenge boulders in England, these mysterious places around the globe often present more questions than answers.

After a rough ride through narrow desert washes, Alfredo Figueroa came to a clearing and ordered the vehicles to halt. The giants were waiting. Figueroa strode briskly across the plain. Before him, ...