Not a tusk IMO. And the cutting surface was not the pointed side: that's the root. So this animal had teeth with very long roots and wedge-shaped cutting surface, probably for cracking bones. Maybe oreodont, hyena or dire wolf. Had to have a significant jaw to anchor that tooth into, so a larger animal, probably 8-10 feet long with very powerful jaws.
Would need to know the age of the rocks in that area to give better idea.
I agree on needing to know the age of the rocks!, if you look at the pic I posted, the "wedge" is the Root. Boars Havalinas, or any type of wild pigs have tremendous strength in their jaws!. The tusks are extremely sharp and can break bones and slick through flesh like a hot knife through warm butter. National Geographic researched the Bite Force of wild Boars, they found it to be equal to a Gray Wolf!! and have been proven to KILL TIGERS that were hunting them!.