You are lost in the wilderness without a compass, GPS, cell phone etc., You have lost your sense of direction, but know that there is a creek to the west of you about 10 miles. If you can find the creek and follow it, you are sure to find people camping and fishing who can help you.
Over the course of 10 miles you could veer North or South by only a few degrees and you would miss the creek.
Come up with three ways that you can find North.
You may use the web if you need it to help you find the three solutions.
One way is that you could just keep going left until you hit the creek and follow it up.
Another way is that you could look at where your shadow is pointing and follow that.
One other way is looking at the sunrise since it rises in the west.