There are currently no active listings in the MLS for land within 10 miles of LaCrescent, although there may be some FSBO property available. I could set up an automated search for you, if you send me your email address, and you would know if anything comes available in MLS...
You can go to http://www.edinarealty.com and search raw land for sale throughout the entire state of Minnesota and Western Wisconsin. This website has all brokers listings and subscribes and has all active mls listings throughout the area listed above.
I hope you find exactly what it is your looking for.
Most likely what you will find in La Crescent is farm land that might be for sale, being as the town is nestled below the bluffs of the Mississippi River Valley. Any land for sale would either be on the upper bluffs or south of town. What are you looking to do with the land? Develope? Hobby Farm? Do you need it to be improved or is raw land ok? How about price? Any additional info will help!