Beaver,
Try this site http://www.semnrealtors.com/. It has all the MLS listings for SE Mn. You can search on Land only if you want. It prompts you to enter minimum and maximum acres and the area…there are seperate Winona, LakeCity/Wabasha, Kenyon/CannonFalls/Redwing. Lacresent/Brownsville/Dresbach areas.
I entered a range of 5-400 acres in the Lake City/Wabasha with no price and see there is a 50+ undeveloped track near Thielman for 112,900 with this description “Wildlife surrounds you on this 51.8 acre parcel that borders the Zumbro River just north of Theilman. Co Rd #4 runs through the property and is located near the intersection of Co #4 and Co #13. ”
Same parameters for Winona area give a 23 acre parcel for 87,900 in Winona County with this decription “Open acreage with fantastic views of the countryside. Woodland with shagbark hickory, oak, birch, basswood, and whitetail deer and small game.”
The listing agent is part of the info you get.
At least it is a place to start…
Pete