Beazell Memorial Forest is the largest county-maintained park in Benton County, and a lovely place for a quiet walk in the woods. From the parking area, you'll head east to the bridge across Plunkett Creek and then back west to Bird Loop. You can listen to the birds and make a find. (You'll need to bring your own writing stick.) Total trip from the parking area, around the loop, and back is about 1.25 miles.
