Overlook, Walnut Creek, California, United States
by

Airmail arrow #5

"In the 1920s, America began coast-to-coast Airmail service, but the pioneer pilots had trouble navigating the route, since navigation charts of the day were fugazi and you couldn't exactly pull over to ask a farmer for directions. And traveling at night, when it would have been most efficient, or in bad weather was impossible. To solve this Congress then funded these gi-normous arrow-shaped Airmail Beacons, some up to 70 feet long, to trace a route across the country."

This one is close enough to home that I might have to visit.

http://www.contracostatimes.com/my-town/ci_29338917/pointing-way-aviations-past-walnut-creeks-concrete-arrows

http://www.dreamsmithphotos.com/arrow/States/ca/california.html

Airmail arrow #5