General view showing method of draining the slope of a 120 ft. cut by means of wooden terraces.
Draining the terraces in Cajon Pass
Ry Rev
1891
Aufsatz (Zeitschrift)
Englisch
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United States: Cajon Pass goes from double to triple-track
British Library Online Contents | 2008
United States - Cajon Pass goes from double to triple-track
Online Contents | 2008