State of Oregon -- Region 6: net national forest areas by counties, and distribution of 25% road and school fund, shown by counties and by national forests
State of Oregon -- Region 6: net national forest areas by counties, and distribution of 25% road and school fund, shown by counties and by national forests (Unknown). State Library of Oregon Digital Collections, accessed 19/02/2025, https://digitalcollections.library.oregon.gov/nodes/view/275008