The 300-acre Van Buren State Park is quietly nestled in a small but valued remnant of woodland surrounded by beautiful corn, wheat and soybean fields.  Four bridle trails with 12 miles pass through a beech/maple forest adjacent to Van Buren Lake.  The trails are relatively flat and have a natural-surface treadway.  The Horse Camp is a circular drive around a grassy area with lots of shade.  There are 30 campsites, 9 with electric, potable water, high lines, picnic tables and…