On of the terms used in orienteering is "catch feature".
What exactly is a catch feature and how would a catch feature help one with navigating in the outdoors?
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A catch feature is a feature that you will run into, if you have gone too far.
As you can see above, if you are using the stream as a handrail feature to get to the bridge in order to cross, the trail acts as a catch feature.
If you are heading towards a catch feature and not following a handrail, then you will want to aim off.
Some examples of things that can act as handrail features include streams, trails, roads, and ridge lines.