North Bloomfield Drain Tunnel

North Bloomfield Drain Tunnel (HMTBD)

Location: Nevada City, CA 95959 Nevada County
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Country: United States of America
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N 39° 22.003', W 120° 55.305'

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Inscription
One of the great engineering feats in Nevada County hydraulic mining history was the drilling of the 7,874 foot drain tunnel, nearly 200 feet below you.

This project was engineered by Hamilton Smith.

Eight vertical shafts of up to 200 feet in depth intersected in the long drain tunnel.

The project was started in April 1872 and took 30 months to complete.
Details
HM NumberHMTBD
Tags
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Marker ConditionNo reports yet
Date Added Monday, September 29th, 2014 at 7:11pm PDT -07:00
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Locationbig map
UTM (WGS84 Datum)10S E 679034 N 4359532
Decimal Degrees39.36671667, -120.92175000
Degrees and Decimal MinutesN 39° 22.003', W 120° 55.305'
Degrees, Minutes and Seconds39° 22' 0.18" N, 120° 55' 18.30" W
Driving DirectionsGoogle Maps
Area Code(s)530
Closest Postal AddressAt or near 22331 N Bloomfield Rd, Nevada City CA 95959, US
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

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