Gallatin County saw 93,000 acres of open space lost to residential lots between 1990 and 2016, and the number of homes in the county more than doubled, from 11,000 to a total of 29,000 during that same period, reports the Bozeman Daily Chronicle. That growth helps demonstrate why the proposed June 5 mill levy open space vote in Gallatin County is so important to the area’s economy, quality of life and conservation of the Gallatin Valley’s agricultural traditions, say open space supporters.