67 p. Includes sections of Appendix QQ: 1886 annual report of Major W. A. Jones, and selections from Appendix RR, reports of Capt. Charles F. Powell, Corps of Engineers, detailing construction, maps and other works related to river and harbor improvements for the Willamette, Columbia and Snake rivers.
19 p. Selected pages of the Report of the Chief of Engineers for 1871. Also includes annual report on the works of river improvement in Oregon for the fiscal year.
Habit; Habitat: Large sandstone outcrops at edge of Umpqua River, by rapids; Location: Just upstream of Yellow Creek Boat Ramp on Umpqua River; Substrate: Rock, vertical face; Elevation: 58 meters.
Habit; Habitat: Large sandstone outcrops at edge of Umpqua River, by rapids; Location: Just upstream of Yellow Creek Boat Ramp on Umpqua River; Substrate: Rock, vertical face; Elevation: 58 meters.