A survey of the waters of the South Umpqua Ranger District
Subtitle: Umpqua National Forest
By: by A.R. Roth.
Contributors: United States. Forest Service.
Publisher: USDA Forest Service, Pacific Northwest Region
Published: 1937
Place of publication: Portland, Or
Language: eng
Number of pages: 41
Subjects: Stream ecology -- Oregon -- Umpqua National Forest.; Umpqua National Forest (Or.)