. Appendix to the Journals of the Senate and Assembly of the ... session of the Legislature of the State of California. 640 feet within 60miles. The valley at Banning is abouttwo miles in width and slopesquite sharply to the south fromthe foot of the San BernardinoMountains, the ^difference inelevation between the north andsouth being about 500 feet. Thisslope is produced by debrisbrought down from the moun-tains of the north, and consistsof granitic sand, feldspar, etc.,intermixed with gravel andsmall bowlders of porphyriticand micaceous granites, thedeposit being more than 100 feetin thickne
. Appendix to the Journals of the Senate and Assembly of the ... session of the Legislature of the State of California. 640 feet within 60miles. The valley at Banning is abouttwo miles in width and slopesquite sharply to the south fromthe foot of the San BernardinoMountains, the ^difference inelevation between the north andsouth being about 500 feet. Thisslope is produced by debrisbrought down from the moun-tains of the north, and consistsof granitic sand, feldspar, etc.,intermixed with gravel andsmall bowlders of porphyriticand micaceous granites, thedeposit being more than 100 feetin thickness. The lands of this high portionof the valley are interspersedwith reddish soils on knoll-likeelevations, the remnants of aformer mesa plateau, but other-wise they are quite sandy, and,as shown in a ravine near thetown, are underlaid at a few feet by sand and gravel, and at 12 feet by bowlders. A well dug inthe lower part of the trough of the valley showed a reddish grav soil andearth for 20 to 30 feet, then 10 to 20 feet of a bluish clay over about 20feet of sand, gravel, and bowlders, in which water was 2 aSi t« o H s %^ - 2 i *> a ^ o H - C S S ^- 33 2 S < O -Jl A . Oh 2 2; 182 UNIVERSITY OF CALIFORNIA—EXPERIMENT STATION. The soil of the valley proper is, for the most part sandy and veryrich in plant-food elements, the percentage of phosphoric acid beingabout .15. It is very generally under cultivation m grain, alfalfa, andorchards. Mesa or Plateau the southern side of the caiion theRiverside mesa rounds to a point just east of Colton; fnd a httlefarther east, opposite Redlands Junction, there are only foothills whoseslopes alone have a reddish soil. These rolling hills continue east towardBanning, and it is only now and then that any red ands are seen, thesoil being mostly of a grayish color and the mesa feature being entirelyabsent. These hills have about the same elevation as the mesa on theonposite side, but are covered largely with a brushy
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Keywords: ., bookauthorcaliforn, bookcentury1800, bookdecade1850, bookyear1853
