Complex sentence: Rogue River is designated as a "Country Scenic" under Michigan's "Natural Rivers Act" and is popular with trout fishers and local youth who have floated the river by innertube since the mid 20th century.
Split into simpler sentences: Rogue River is designated as "Country Scenic" under Michigan's Natural Rivers Act. It is popular with trout fishers and local youth who have floated the river by innertube since the mid 20th century.