This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. (CNN) — From a distance they look like ...

PYRAMID LAKE, Nev. (AP) — Ancient rock etchings along a dried-up lake bed in Nevada have been confirmed to be the oldest recorded petroglyphs in North America, dating back at least 10,000 years. The ...

The carvings etched into limestone boulders near Pyramid Lake in western Nevada show that the early North Americans were surprisingly creative... N. America's Oldest Known Petroglyphs Discovered In ...

A 2024 satellite photo shows an unusually active bloom of toxic cyanobacteria swirling in the water of Nevada's Pyramid Lake. Research suggests that the algae has been blooming there for at least ...