The western trailhead is just south of Rockport Rd. on Afton Rd. along the river. There is a small boat launch here, too. Other trailheads are at Rockport Park (Peace Park; access via the Peace Trail) and at Monterey Park (Riverside and Lincoln streets).
This is a nice path that connects the Peace Trail to the South and Spring Brook Trail to the North. It follows the Rock River for most of the way, but it isn't the most scenic path. It can be a bit industrial and there are a lot of geese in one section closest to the river. It is maintained pretty well from what I have seen.
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