Can you figure out what I am? Let us know how you did in the comments below and feel free to share with your online pals too. HINT: A 4-letter-word
Some live in me, some live on,
And some shave me to stride upon.
I rarely leave my native land,
Until my death I always stand.
High and low I many be found,
Both above and below ground.
What am I?
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