Clayton (HM14Q4)

Location: Clayton, CA 94517 Contra Costa County
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Country: United States of America
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N 37° 56.472', W 121° 56.15'

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Miwok Indians inhabited this valley at the base of Mt. Diablo when Spanish explorers came in the 1770's. Scouts, trappers, prospectors and settlers followed.

In 1857 Clayton was founded by Joel Clayton, a miner, farmer, and wagonmaster from England. Coal, copper and quicksilver mines developed nearby, creating a bustling downtown with stage service and a post office established in 1861. When mining declined, farming and ranching prospered, with orchards, vineyards, horses and cattle.

Eventually residential development blended with this historical setting. To preserve its unique identity and rural charm, Clayton incorporated in 1964.
HM NumberHM14Q4
Year Placed1992
Placed ByClayton Business & Professional Association (CBPA)
Marker ConditionNo reports yet
Date Added Thursday, October 23rd, 2014 at 8:06am PDT -07:00
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Locationbig map
UTM (WGS84 Datum)10S E 593506 N 4199825
Decimal Degrees37.94120000, -121.93583333
Degrees and Decimal MinutesN 37° 56.472', W 121° 56.15'
Degrees, Minutes and Seconds37° 56' 28.32" N, 121° 56' 9.00" W
Driving DirectionsGoogle Maps
Area Code(s)925
Closest Postal AddressAt or near 6054 Main St, Clayton CA 94517, US
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