SOIL SURVEYOR THE RED BLUFF AREA, CALIFORNIA. 



By L. C. HOLMES and E. C. ECKMANN. 



DESCRIPTION OF THE AREA. 



The Red Bluff area covers the extreme northern portion of the 

 main Sacramento Valley and its adjacent elevated plains. The north- 

 em boundarv of the valley is formed by a series of low hills and 

 wooded slopes which 

 separate it from an- 

 other valley on the 

 north, known as the 

 Anderson Valley.^ 



A small area of these 

 low wooded hills is in- 

 cluded within the sur- 

 vey. Here the river 

 flows swiftly through a 

 narrow winding gorge 

 known as the Iron 

 Canyon, and is bor- 

 dered by a few small 

 areas of alluvial soil in 

 the bends. This con- 

 dition continues to 

 about 3 miles above 

 the city of Red Bluff, 

 where the hills on both 

 sides of the river re- 

 cede. At this jooint the 

 great valle}^ floor of 

 the Sacramento begins. 

 It extends southward ^'^- ^■' 

 as a valley 20 to 60 

 miles wide, unbroken save by the Marysville Buttes, to Sacramento 

 and is continued thence to Bakersfield as the San Joaquin Valley. 



-Sketch map showing location of the Red Bluff 

 area, California. 



1 This valley is included in the soil survey of the Redding area. 



