What Are Those Towers For? Historical

What Are Those Towers For? Historical (HM1Y24)

Location: Walnut Creek, CA 94598 Contra Costa County
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Country: United States of America
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N 37° 52.864', W 121° 55.108'

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Inscription
Mount Diablo has always been a guide and landmark to people far bellow, and so it became a natural location for many radio and transmission towers as well.
As early as 1928, the Standard Oil Company and U.S. Dept. of Commerce jointly constructed a 75-foot tall aviation beacon for commercial aviation that was visible for 100 miles.
As technologies change and the need for such towers diminishes, it is the long-term goal of Mount Diablo State Park to remove all towers from the summit.
1928 Standard Oil tower
The beacon produced a light equivalent to 10 million candles. It was later transferred to the Summit Building, where it remains to this day.
Special services antennae received and relayed police and fire and other emergency civil defense messages.
Details
HM NumberHM1Y24
Tags
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Marker ConditionNo reports yet
Date Added Saturday, April 29th, 2017 at 1:01am PDT -07:00
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Locationbig map
UTM (WGS84 Datum)10S E 595110 N 4193170
Decimal Degrees37.88106667, -121.91846667
Degrees and Decimal MinutesN 37° 52.864', W 121° 55.108'
Degrees, Minutes and Seconds37° 52' 51.84" N, 121° 55' 6.48" W
Driving DirectionsGoogle Maps
Area Code(s)925, 510, 707
Which side of the road?Marker is on the right when traveling North
Closest Postal AddressAt or near Summit Rd, Walnut Creek CA 94598, US
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

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