Thursday, January 20, 2011

TOPO MAP 101

Reading a topographical map can be confusing, But, by identifying a few
basic terrain terrains features and understanding how deer use those
features you can quickly find some good hunting locations without leaving
your kitchen table.
Contour lines on a topo map show different elevations. On a standard 7.5
minute series topo map, the lines are spaced at 10 foot intervals….the
closer the lines the steeper the terrain.
To assist you in getting a better understanding of a flat topo map, I’d
like to introduce you to a 3D topo map that you can take anywhere. Make a
fist and cock your wrist like you’re looking at your watch. Now follow
along.

A (Hilltop) – The most easily identifiable terrain feature on a topo map.
Excellent points of reference for orienteering oneself in the field. On
your 3D topo map, each of your knuckles represents a hilltop.
B (Ridge) – Formed by a series of adjoined hilltops. Whitetails love
ridges. Look for bucks to bed about two-thirds of the way up. Pay attention
to morning and evening thermals when hunting sides of ridges. Your line of
knuckles form a ridge.
C (Saddle) - The area between two adjoining hilltops. They are lower in
elevation than the hilltops and can serve as a travel route for deer to get
from one side of the ridge to the other. This is the area between two
knuckles.
D (Incline/Decline) - The closer the contour lines are to each other on the
topo map, the steeper the terrain. This information can be invaluable for
determining easy travel routes to and from a hunting location. On the map
below, notice how steep that hill is coming down to the lake from the
north. The area on the back of your hand going from your knuckles to your
watch is a good example of a steep hill.
E (Draw) – A slightly depressed and elongated terrain feature that usually
comes up from a low area to a saddle between two hilltops. Deer will use
draws as travel routes to get on the ridge in the morning to bed and off
the ridge in the evening to feed. This is the crease between your fingers
that points to the area between your knuckles.
F (Spur or Point) – A slightly elevated and elongated terrain feature that
usually goes down from a hilltop to a low-lying area. Bucks especially will
use spurs as bedding areas. This is the back of your finger that runs down
from your knuckle.



Combine a topo map with an aerial photo (all available for free online) and
you have a potent combination of hunting tools at your disposal for quickly
finding hot ambush sites.

And don’t forget to check out my instructional archery videos at
www.youtube.com/archery64.

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