The archive contains two folders.

>"Improved Riverland Farm" will spawn debris. This is the file you should use with new games.
>"Improved Riverland Farm BLANK" contains the same map, with no debris. For use with existing saves.

Cabins work w/ both.

This is the Content Patcher version, graciously created by Blyndshot. Thanks for your efforts!
You can easily change between the debris and blank maps with this version. Please see the readme included in the archive.