Via the Los Angeles Times:

If you’re planning a trip to Grand
Canyon National Park later this month, check out Archeology Day. Held
on Saturday, March 27, this all-day educational program will focus on
native peoples who inhabited the Grand Canyon in Arizona
long ago and on how archeologists do their work. More than 4,000
archeological sites have been identified in the park, with artifacts
that date back nearly 12,000 years…