BOZEMAN — For the last week, smoke has obscured views of the Bridger Mountains in Bozeman. My irritated eyes prompted a visit to Dr. Ryan Stephenson at Northwest Health, a practice he opened with his wife three years ago. “I’ll pull down your lower lid ... it actually is pretty irritated,” Stephenson said during my eye exam. While my irritated eyes are manageable for now, questions remain about how long the smoky conditions will continue. So where is that smoke coming from?