Science & EnvironmentHow wilderness permits changed the Central Oregon wilderness experienceBy Bradley W. Parks (OPB)Tam McArthur Rim Oct. 16, 2021 2 p.m.A new permit system and a thick, ever-present blanket of wildfire smoke gave some of Oregon’s most popular trails a break from crowds. 📨 Daily news in your inboxSign up today for OPB’s “First Look” – your daily guide to the most important news and culture stories from around the Northwest.EmailPlease leave this field blankSign up