Show THE KEY TO the topographical raph ical map of richmond and its piebe pic bents tits a formidable array of ichel but in such cases the alic of one commanding insures the capture or destelle tion or of tho the city fort Jo johnston liDston on tile not 1101 tit or ful fuit t jackson on the cast commands tile the rebel capital as well as is the approaches fol t johnston i is a huge lauge 0 eaith situated on a hill one mile south or of the chickahominy and four miles front from the center of rich mond mand between the mechanicsville Mechanics villu ville turnpike pike and tile woodbury bridge road directly south of grants lines the fire of this foit foi t ica i caches clies the mo me and woodbury bridges and two fords between possibly tile tho possession of the hills north of the chickahominy would enable grant to reach this fol foi t with his siege guns foit foi t jackson is on oil it a hill directly west of fair oaks between jackson and johnston aie smaller covering 0 the new birdge road which enters enter s richmond over union hill it seems to be necessary to prosecute the siege on the north or cast so that the union aimy may at the same time cover its communications with the sacramento union |