The Hobart Butte high-alumina clay deposit Lane County, Oregon /
Allen, Victoria T.
The Hobart Butte high-alumina clay deposit Lane County, Oregon / Victoria T. Allen. - Washington : [s.n.] , 1951. - 11 p. : ill., maps, diagrs., tables ; 27 cm. - Geological Survey circular ; 143 .
Alumina cement -- Oregon -- Lane County.
G US I53 (08) 1/143
The Hobart Butte high-alumina clay deposit Lane County, Oregon / Victoria T. Allen. - Washington : [s.n.] , 1951. - 11 p. : ill., maps, diagrs., tables ; 27 cm. - Geological Survey circular ; 143 .
Alumina cement -- Oregon -- Lane County.
G US I53 (08) 1/143