GMC SIERRA DENALI 2002, Manual

Page: 202 / 394

4-19
Approaching a Hill
When you approach a hill, you need to decide if it’s one
of those hills that’s just too steep to climb, descend or
cross. Steepness can be hard to judge. On a very small
hill, for example, there may be a smooth, constant
incline with only a small change in elevation where you
can easily see all the way to the top. On a large hill, the
incline may get steeper as you near the top, but you may
not see this because the crest of the hill is hidden by
bushes, grass or shrubs.
Here are some other things to consider as you approach
a hill.
D Is there a constant incline, or does the hill get sharply
steeper in places?
D Is there good traction on the hillside, or will the
surface cause tire slipping?
D Is there a straight path up or down the hill so you
won’t have to make turning maneuvers?
D Are there obstructions on the hill that can block your
path (boulders, trees, logs or ruts)?
D What’s beyond the hill? Is there a cliff, an
embankment, a drop
-
off, a fence? Get out and
walk the hill if you don’t know. It’s the smart way
to find out.
D Is the hill simply too rough? Steep hills often have
ruts, gullies, troughs and exposed rocks because they
are more susceptible to the effects of erosion.