St. Louis (KSDK) --Lower water levels on theMississippi and Missouri Rivers are uncovering history. A few boats thatsank in the rivers are now visible.

That's piqued the curiosity of some people in the area, but it alsocomes with a warning. The Army Corps of Engineers says these boats maybe interesting, but getting to see the history up close and personalshould be done with caution.

In St. Louis, a World War II minesweeper that was once a museumbefore it sank can be seen clear as day along the Mississippi, just southof the Poplar Street Bridge. And on the Missouri River you can see theold riverboat, the Montana. Lower water levels on the rivers are toblame.

"Just because of the history and the river itself, really meanderedfor a long time. So we get to see some things pop out of the river whenit gets this low that we normally wouldn't see," says Mike Petersonwith Army Corps of Engineers Public Affairs.

He tells us pieces of history popping up all over thanks to water levels.

The Montana has people in St. Charles talking. This is the first time it's been visible since 2006.

"The Montana has the dubious distinction of being one of the largest -- or the largest --riverboats to go up the Missouri River," says NelsonWeber. "It was about 280 feet long."

And it was about 48 feet wide. Weber has kept up with the Montana since the 1960s and wrote a book about it.

"There was an article in the paper that talked about a little bitbeing exposed and people were out there digging for treasures. Theythought there was going to be treasures on the boat. There wasn't."

But that's not stopping people from taking the hike to check it out now. Weber says they won't find much.

"Basically all that's left now is the hull of the boat."

In light of the low water levels, Mike Peterson warns anyone going tothe rivers to avoid sand bars, because they're not stable and couldcollapse. He also encourages people to leave the pieces of history asthey are.

"As far as the artifacts go, that's common history. It's our sharedcultural history. I encourage folks to look at it, but leave it alone.Stay off the river and leave that history for the next time somebodygets a chance to see it."

The minesweeper can be seen on the Mississippi about a half milesouth of the Poplar Street Bridge, and the Montana is on the St. LouisCounty bank of the Missouri River, just upstream from the 370 Bridge.