GEOLOGIC NOTES ON FORT PLACEMENT
Enlisted September 17, 1864: Adam Devoe. Wife: Ellen Devoe.
Three Children. Appointed to Company H, 5th USCC, Sargent Devoe was formerly a slave of Governor Thomas Bramlett, a Union Democrat. (Prichard, 2014).
Figure 2 - Plan view of the earthworks at Camp Nelson, dated September 1864, as the 5th and 6th USCC prepared to embark on the Saltville Campaign.
Figure 3 - Record of one African American recruit of Camp Nelson.
Figure 4 - Union campaigns against Saltville, VA late in the Civil War.
Figure 5 - A natural fortification, Camp Nelson is indicated by
the black star south of Lexington. Its elevation is induced by the fault’s position astride the domal Cincinnati Arch. Modified from Jillson, 1945.
system (Figs. 6 and 7). The faults have thrown resistant beds on their northwest (downstream) sides upwards (Fig.7, cross-section A-A’), not only diverting the river northward but forcing it to cut a canyon into what is now an elevated karstic plateau carved into the resistant limestone.
Jillson,
in his thorough Monograph, “The Kentucky River” notes the formidable accomplishments of the Kentucky River in battle with the landscape.
The river has seen eight base level changes which altered
its course (See Figure 5) responding most recently to a Pleistocene uplift of about 1000 feet. Recent entrenchment closely follows the past course. The principle structural feature in opposition to the erosional force of the river is the Cincinnati Arch, a domal feature, which reaches its apex in the vicinity of Camp Nelson. (Jillson, 1945).
Jillson shows that two structural controls; the crest of
Figure 6 - Jillion’s discovery of abandoned high level deposition (Jillson 1948) with modification to show proximity to Camp Nelson walls.
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the Cincinnati Arch and the Kentucky River Fault System, diverted the path of the river into its present course, leaving Pliocene high level fluvial deposits (See Figure 6, Jillson, 1948). The Camp Nelson Limestone (the oldest rocks that outcrop in Kentucky) and the intersection of the fault sys-
Jul.Aug.Sep 2019 • TPG 57
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