English: A map of the area around the Anderson House during the First Battle of Lexington . Original description: Explanation of the Diagram of the Hospital Position : a is the Anderson house or hospital ; b a smaller brick house back of it ; c an outlying low earthwork, projecting down nearly into the ravine, represented by the dotted line, while the inclosed earthwork was built up around the head of the ravine, as shown by the plain line ; d the sally-port in the earthworks, about one hundred yards from the hospital ; e a canal-like carriageway leading up to the house, and in which the sharp-shooters lay secure, only about eighty feet from the front door of the hospital; the brackets represent Federal picket-guard stations with a little dirt thrown up for protection; the dotted line sss shows deep gorge or ravine which was full of Confederate sharp-shooters."