@article {26941,
	title = {Channel change and bed-material transport in the Umpqua River Basin, Oregon},
	volume = {no. 2011-5041},
	year = {2011},
	note = {Concerns about gravel mining led to this examination of channel change and transport of streambed material. Mapped channels and estimated fluctuations in bed-materials. Maps, color photographs. Contrasts historical maps with aerial photographs to show a series of changes in channel gravel bars over time.},
	pages = {112 p.},
	institution = {U.S. Geological Survey},
	address = {Reston, Va.},
	keywords = {flooding, geology, history, human impacts, hydrology, logging, mining, sediment data, sediments, Umpqua River Basin},
	url = {https://pubs.usgs.gov/sir/2011/5041/pdf/sir20115041.pdf},
	author = {Wallick, J. Rose and O{\textquoteright}Connor, Jim E. and Anderson, Scott W. and Keith, Mackenzie and Cannon, Charles and Risley, John C.}
}
@article {26856,
	title = {Channel change and bed-material transport in the Umpqua River Basin, Oregon},
	volume = {no.2010-1314},
	year = {2010},
	note = {Concerns about gravel mining led to this examination of channel change and transport of streambed material. Mapped channels and estimated fluctuations in bed-materials. Maps, color photographs. Nice historical detail.},
	pages = {178 p.},
	institution = {U.S. Geological Survey},
	address = {Reston, Va.},
	keywords = {flooding, geology, history, human impacts, hydrology, logging, mining, sediment data, sediments, Umpqua River Basin},
	url = {https://pubs.usgs.gov/of/2010/1314/pdf/ofr20101314.pdf},
	author = {Wallick, J. Rose and O{\textquoteright}Connor, Jim E. and Anderson, Scott W. and Keith, Mackenzie and Cannon, Charles and Risley, John C.}
}
@article {26751,
	title = {Preliminary assessment of vertical stability and gravel transport along the Umpqua River, southwestern Oregon},
	volume = {no.2009-1010},
	year = {2009},
	note = {This is a "preliminary study of (1) gravel transport in the Umpqua River basin, (2) possible historical changes to physical channel and floodplain conditions, and (3) potential future studies. . ."},
	pages = {40 p.},
	institution = {U.S. Dept. of the Interior, U.S. Geological Survey,},
	address = {Reston, Va.},
	keywords = {dredging, erosion, hydrology, mining, North Umpqua River, precipitation, sediment data, soils, South Umpqua River, Umpqua River, Umpqua River Basin},
	url = {https://pubs.usgs.gov/of/2009/1010/ofr20091010.pdf},
	author = {O{\textquoteright}Connor, Jim E. and Wallick, J. Rose and Sobieszczyk, Steven and Cannon, Charles and Anderson, Scott W.}
}
