Meramec State Park
Meramec State Park spans between St. James MO, and its home base in Sullivan Mo. The St. James location has a fish hatchery, while the Sullivan location has a bit more hiking to and more overviews of the river. Both parks have quite a bit of CCC structures and history around them.
Link to the St. James Park (Link)
Link to the Sullivan Park (Link)
– 10/26/14 Castor River and Meramec Park (St. James and Sullivan MO)