Altoona, Pa. . 1 map on 41 sheets : col. ; on sheets 65 x 55 cm. + 1 title sheet and 1 key sheet. Oriented with north to the upper right with some sheets on the horizontal; Title from title sheet; Index on title sheet; ""7558""; Includes text, key, and Altoona key map on key sheet; Maps Library copy is encapsulated. Scale approximately 1:600. 50 ft. to an in.