Supermarket at Preston-Forest Dallas closes temporarily for refresh The store will be bigger, better, more modern. Natural Grocers A supermarket in North Dallas is closing temporarily to give itself a refresh: Natural Grocers, the Colorado-based chain and the largest family-operated natural and organic grocery, will expand and remodel its Preston-Forest store at 11661 Preston Rd. According to a release, the store, which has been open for more than a decade, will temporarily close on January 30, and reopen as a "bigger, better, and more modern shopping experience" in mid-March. For customers, this means more than having a bigger, better, and more modern shopping experience. In a word: markdowns.