Fences blocking the big white mill and silos will be taken down on Tuesday, allowing the public to explore the grounds for the first time since 1998.
The mill was among the first businesses to open in Tempe. Work on restoring the mill began a year ago and now it will serve as an event venue for movies, concerts, picnics, weddings and other occasions.
Improvements include a stage and a grassy lawn, a grove of trees for shady picnics and a museum.
Details on how to book the mill will be available Tuesday.