Advanced Map and Aerial Photography Reading: FM 21-26

The purpose of this manual is to provide a text on map and aerial photograph reading for training of military personnel already familiar with basic elements covered by FM 21-25 or who require more detailed instructions than is furnished by FM 21-25.

SECTION I. General ———— 1-9 1
II. Distance ——— 10-15 10
IH. Direction, orientation, and location ——— 16-28 20
IV. Coordinates ————— 29-38 41
V. Elevation and relief———————39-48 61
VI. Slope, profile, and visibility_____ 49-60 73
VH. Aerial photographs_________ 61-75 87
Vin. Identification of terrain features on sin
gle photograph————— 76-88 113
IX. Stereovision and examination______ 89-93 129
X. Preparation of aerial photographs for use
as map substitute_________ 94-114 148
XI. Photomaps ___________________ 115-120 175
INDEX ——— 183