If you are looking for clean & safe storage units in Onalaska, Wisconsin, Holmen, Wisconsin or Barre Mills, Wisconsin call Northern Land Mini Storage or visit us online @ www.northernlandstorage.com.Northern Land Mini Storage has the best storage units for all your storage needs. We offer a variety of storage units for your convenience so stop by and visit us today in Onalaska , Wisconsin or visit us online.. Northern Land Mini Storage is a locally owned business located out of Onalaska,Wisconsin. We provide: Month to Month Lease,New Facilities,Many Sizes Available,24 hour Access,Security Lights,Your Lock & Key.