While the cannon legend has been retold for years and could very possibly be just that ...a story , it still remains that that many people have dived for that cannon for years......The St Joe River is pretty wide through here and prone to flooding, so who knows where that cannon is. My guess is under generations of silt,close to the bank . Plus the fact that if a bunch of settlers pushed that cannon in...they would probally have gone back after yet. One thing that always bothered me about this story is...if I was under attack, would I push my weapon into the river

Hahah
Neverless this entire area is a gold mine for treasure hunters...from coins and artifacts to Indian beads and weapons...to early history!
Fort St. Joseph
The French fort built here in 1691 controlled southern Michigan's principal Indian trade routes. Missionaries and fur traders were here already. The fort became a British outpost in 1761. Two years later it was one of the forts seized by Indians during the uprising of Chief Pontiac. Still later, traders made it their headquarters. In 1781 Spanish raiders ran up the flag of Spain at the fort for a few hours....,The Potawatomi capture Fort St. Joseph at present-day Niles on 25 May; the Chippewa take Fort Michilimackinac on 2 June.1763.....
Since 1832, Michigan has had an active antislavery society. Quakers in Cass County, Laura Haviland in Adrian and former slave Sojourner Truth in Battle Creek are only a few of the many Michiganians working on the Underground Railroad
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The Fort St. Joseph site itself is now partly covered by the backwaters of the Niles dam and partly by six feet of landfill.
http://www.michiganhistorymagazine.com/extra/pdfs/stjoefound.pdf
This entire area was covered by a dump when I was growing up, except for a small area where the Boulder was placed as a marker. An interesting note is that in earlier maps...The ST Joseph river was called the Miami River...
Now the dump is gone, but this is still on a dirt road following the river curves with plenty of open TD space that you can follow for about five mile stretches.
For those of you who dint know, This is in the southern most corner of Michigan, Berrien County .