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NavSource Online: Mine Warfare Vessel Photo Archive

Monadnock (MMA 14)
ex-USAMP Major Samuel Ringgold (MP 11)

Monadnock served both the US Army and Navy

Camanche Class Auxiliary Minelayer:

  • Laid down for the U.S. Army Coast Artillery Corps, Mine Planter Service as USAMP Major Samuel Ringgold (MP 11) by the Marietta Manufacturing Co., Point Pleasant, WV
  • Transferred to the Navy in March 1951 and berthed at Boston, MA with the Atlantic Reserve Fleet
  • Designated as an Auxiliary Minelayer, ACM-14
  • Reclassified MMA-14, 7 February 1955
  • Named Monadnock 1 May 1955
  • Monadnock was never commissioned in the U. S. Navy
  • Struck from the Navy Register 1 July 1960
  • Sold and renamed Thiti
  • Renamed Amazonia under Liberian registry
  • Sold in the 1980s under Italian registry and renamed Dear
  • Fate unknown.


  • Displacement 1,300 t.
  • Length 188' 2"
  • Beam 37'
  • Draft 12' 6"
  • Speed 12.5 kts.
  • Complement 69
  • Armament: One 40mm gun mount and four 20mm mounts
  • Propulsion: Two Combustion Engineering header type boilers, two 1,200shp Skinner Unaflow reciprocating engines, no reduction gear, two shafts.
    Click on thumbnail
    for full size image
    Size Image Description Source
    USAMP Maj. Samuel Ringgold (MP 11)
    Ringgold/Monadnock 73k c. 1948/1952
    Seen here as the Maj. Samuel Ringgold (MP 11) during an "open house" in the Canal Zone.
    Harold Ferguson
    Ringgold/Monadnock 102k c. 1948/1952
    Seen here as the Maj. Samuel Ringgold (MP 11) during an "open house" in the Canal Zone
    Harold Ferguson
    Monadnock (MMA 14)
    Ringgold/Monadnock 147k c. August 1960
    Atlantic Reserve Fleet, South Boston Annex, Boston Navy Yard
    Moored astern of Dayton (CL 105)
    ©Richard Leonhardt

    View the Monadnock (MMA 14)
    DANFS History entry located on the Haze Gray & Underway Web Site.
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