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historicalmarkerproject/markers/HM116P_washington-aqueduct_Potomac-MD.html
Washington Aqueducthas been designated a National Historic LandmarkThis site possesses national significancein commemorating the history of the United States of America1974National Park ServiceUnited States Department of the Interior
historicalmarkerproject/markers/HMXNC_creating-a-national-park_Potomac-MD.html
"It is a refuge, a place of retreat, a long stretch of quiet and peace at the Capital ?"William O. Douglas.
Look around you. The park you stand in exists because people cared. In January 1954, Justice William O. Douglas of the Supreme Court of …
historicalmarkerproject/markers/HMXMU_olmsted-island_Potomac-MD.html
Named in honor of Frederick Law Olmsted, Jr.1870 - 1957Illustrious landscape architect and advocate of the preservation of natural scenery who, as an original member of the National Capital Park and Planning Commission from 1926 to 1932, was instr…
historicalmarkerproject/markers/HMIU2_lockhouse-22_Potomac-MD.html
If walls could talk then Lockhouse 22 could tell some tales. One might hear about President Grover Cleveland who sought refuge from the pressures of the White HOuse by coming here on fishing trips. Or perhaps the lockhouse would tell of one lockke…
historicalmarkerproject/markers/HMEK9_watering-the-canal_Potomac-MD.html
Why are there two locks here? While they may look similar, the two locks played very different roles in the operation of the canal. The lock in front of you is Inlet Lock 2. The lock behind you is Lift Lock 23. Lift locks raised and lowered boats …
historicalmarkerproject/markers/HM2R0_great-falls-canal-and-locks_Potomac-MD.html
National HistoricCivil Engineering LandmarkGreat Falls Canal and LocksConstructed 1785-1802. Operated until 1821———These works were the major featureof the first river navigation systemfor trade with the west.This pioneer waterwa…
historicalmarkerproject/markers/HM2E_gold-mining-in-maryland_Rockville-MD.html
Most gold found in Maryland came from the Potomac area. Mining operations began shortly after gold was discovered near Great Falls during the Civil War and continued until 1940; incidental prospecting continued until 1951. From 1884-1940 the US Mi…