Looks like you could hit lakes Dequeen, Dierks, Gillham, Ouachita, and possibly Blue Mt within a hour of Mena. Of those I think Ouachita has the reputation of producing the largest crappie but all are worth a visit. Not sure how far Greeson is but obviously thats a good producer as well. Blue Mt is a hidden gem from what I've heard as well.

Keep us posted wherever you launch an give us a report. If I cant be out there fishing I sure do enjoy a report from someone who is.