Riverside State Park has a magnificent equestrian campground on the west side of the river.  The main campground has electrical hookups, horse corrals & pit toilets.  With permission, overflow camping is available by the arena facility and readily accommodates "high lines" for your horses.  Many miles of trails intersect at this point, or close by.  There are many hiking, biking, fishing, kayaking and even ORV activities in this huge park.  We visit frequently, but spring and fall are probably the most scenic times.