The mountains of California . positionsto one another, as controlled by soil, climate, andthe comparative vigor of each siDecies in takingand holding the ground; and so appreciable arethese relations, one need never be at a loss in de-termining, within a few hundred feet, the elevationabove sea-level by the trees alone; for, notwith-standing some of the species range upward for sev-eral thousand feet, and all pass one another moreor less, yet even those possessing the greatest verti-cal range are available in this connection, in as muchas they take on new forms corresponding with thevariations
The mountains of California . positionsto one another, as controlled by soil, climate, andthe comparative vigor of each siDecies in takingand holding the ground; and so appreciable arethese relations, one need never be at a loss in de-termining, within a few hundred feet, the elevationabove sea-level by the trees alone; for, notwith-standing some of the species range upward for sev-eral thousand feet, and all pass one another moreor less, yet even those possessing the greatest verti-cal range are available in this connection, in as muchas they take on new forms corresponding with thevariations in altitude. Crossing the treeless plains of the Sacramentoand San Joaquin from the west and reaching theSierra foot-hills, you enter the lower fringe of the THE FORESTS 143 forest, composed of small oaks and pines, growino;so far apart that not one twentieth of the surface ofthe 2:round is in shade at clear noondav. After ad-vancing fifteen or twenty miles, and making an as-cent of from two to three thousand feet, you reach. J0^ %, ^-Ji EDGE OF THE TIMBER LINE ON MOUNT SHASTA.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectcaliforniadescriptio
