This card comes from Darlene, the San Fransisco Bay Area.
The information on the back:
HIGHWAY 49 - THE GOLDEN CHAIN HIGHWAY
CALIFORNIA'S HISTORIC GOLD COUNTRY
In 1848 only a few hundred settlers lived on the foothills of the western slope of the Sierra Nevada Mountains. Then gold was discovered and whitin a year 90,000 '49ers had appeared. Highway 49, the Golden Chain Highway, takes you through California's Historic Gold Country as it follows the 300 mile-long area enriched by a giant vein of gold called the Mother Lode.
I hope you had a nice Halloween, Darlene!