The cretaceous formations of northeastern Colorado and the foothills formations of north-central Colorado,
Henderson, Junius, 1865-1937.
The cretaceous formations of northeastern Colorado and the foothills formations of north-central Colorado, by Junius Henderson. - Denver, Col., Eames brothers, state printers, 1920. - 98 p. illus., fold. map (in pocket) 23 cm. - Colorado. Geological survey. Bulletin 19 .
At head of title: Colorado Geological survey, Boulder ...
Bibliography: p. 53-57, 94-96. Bibliographical foot-notes.
gs 21000130
Geology--Colorado.
Geology, Stratigraphic--Cretaceous.
QE91 / .A4 no.19
The cretaceous formations of northeastern Colorado and the foothills formations of north-central Colorado, by Junius Henderson. - Denver, Col., Eames brothers, state printers, 1920. - 98 p. illus., fold. map (in pocket) 23 cm. - Colorado. Geological survey. Bulletin 19 .
At head of title: Colorado Geological survey, Boulder ...
Bibliography: p. 53-57, 94-96. Bibliographical foot-notes.
gs 21000130
Geology--Colorado.
Geology, Stratigraphic--Cretaceous.
QE91 / .A4 no.19