What's the easiest way to get to the River Bottoms?

[ozman05]

I'm new to the area and was curious about where the entrance is to this trail. How long of a trail is it? Also, what is this raft that everybody talks about? Thanks!

[noise_is_life]

There are details here:

http://www.morcmtb.org/trailreviews/metro/riverbottom.shtml