When a curious rancher stumbled into a forgotten cave in search of straying cows, he discovered one of the most incredible Native American artifacts on record: a 10”-tall clay pot with its sealed lid intact, protecting almost 5 lb. of well-preserved corn harvested 1,000 years in the past.

The shotgun houses and clapboard shacks are gone, but a child's toy lingers in farmland rows. Time, tillage and rainfall reveal the sharecropper's last testament: clusters of magnificent clay, agate and glass marbles.

Hidden for thousands of years beneath farmland, arrowheads wait patiently for the eyes — and hands — of Johnny Dickerson. His phenomenal collection of Native American stone tools includes 4,000-plus showpiece points.

Hotter, drier weather is on the way for much of the country. Meteorologist Matt Engelbrecht breaks down the timing of things.