Map bulletin no. 1,
Northern Transcontinental Survey.Agricultural Department.
Hilgard, Eugene W.(Eugene Woldemar),1833-1916.
Pumpelly, Raphael,1837-1923.
New York, J. Bien,
1883.
Cover title.
Raphael Pumpelly, director.
Soils of the Yakima and Colville regione.--Yakima region, W.T. (Two sheets)--Colville region, W.T.
Soils
Soil maps