L.N.
Could you try terracing it into a garden, starting with the edges and letting it drain -- or if it's dry enough, look into making a terraced garden (like they do in de-forested regions and places with a steep terrain). This can be very beautiful and practical and you could grow all sorts of yummy things (strawberries, blueberries, veggies, herbs).
Contact the county extension office for free help and more good, maybe much better, ideas.
Good Luck,
L. D., Mom of three who'd love living on 4 acres of land...