A. H. Campbell Maps
1864
1865
Army Corp Eng.
1863
1895
Vicinity of Richmond
A. H Campbell draws a series of maps for the army. He has different shape for the  Piping Tree loop than all the other map makers.
He knows from previous maps that there is an island around here, and he finds one. Now instead of a round shape, it has thin, boomerang  shape. And he names it the “Horse Shoe Island”
1862