Arrowheads of various points found along Natchez Trace Parkway in Tennessee

[twister]

I live about 7 miles from the Natchez Trace Parkway in Lewis County Tennessee. I do alot of walking the banks of the Buffalo River which was a main waterway for the founding Indians of the land. Where I mainly go is the spot where Meriwhether Lewis from the Lewis and Clark Expedition died. I am not familier with arrowheads at all but I thought I would post what I have found over the years. If you can offer any info on any of these please feel free to let me know. It is something that I would like to learn more about. Thank you

HH Twister

[fossis]

Hello Twister,

You have some nice colors there, The piece in the top picture looks to be just a triangular stone (natural) bottom right.
All the others look to be shaped by Native Americans.

HH, Fossis...................