(lack of space) (2-21)
Finally, certain types of information needed for engineer operations cannot be obtained from maps because they
are not symbolized. These include such data as soil composition, engineer construction materials, type of rock, and
kinds of timber.
Map reconnaissance should be followed by ground reconnaissance whenever possible because some
information needed for engineer operations is not ________________________________ on maps.
Set 2-5. GROUND RECONNAISSANCE
(conceal (or obscure); skills; enemy fire) (2-45)
FRAME 2-46. INFORMATION FRAME.
In this and the following sets of Lesson 2, we will discuss general engineer reconnaissance as reported on DA
Form 1711-R. Route reconnaissance and its related DA forms will be treated in Lessons 3 and 4.