Mobile register and journal., 1845-09-04

FREmOHr's EhfEDfTioN.s--fhe Democratic he- view contains very interesting notice of the Expe- ditions o Captain remont to the Oregon Territory and Rocky Monnains. The immediate object which prompted the expeditions was off military charac- ter, but others were by no means neglscsed. The pecuarities of the couniry-lts topography, geolo- gy, botany, etc were minu,eIy noted; and in this way Captain F has impaled to hIs pages vast deal ol matter deeply interesting to the general reader.
 It is now aseertaned that the distance from the frontiers of Missouri 10 the tide water of Oregon IS only about thousand miles-lhat the Mountains can be passed without the least diculty-that the whole route, even at the present time while in state of nature. is practicable for carriages, artillery, etc. also, that there is an abundance all of the year of nutritious grass to furnish food for horses and cattle.
 We extract from the Review the following pas- sages, which will give the reader some idea of the value and interest of the work "H'
 From all the facts which fell under the observation of the explorer he deduces the conclusion that Ore gon is the most impregnable country in the world. In trayersng The reg ion from Missouri to the Rocky Mountains, abundance Of the most nutritious grass is found at almost all seasons of he year, supersed ing entirely tle necessity of transporting feed for the sustcnance of the ca.e and horses, which 1t may be necessary 10 take with expedition. Alter pas. sing the mountains, he produce IS equally prolific and nutritious, though ofa different species, called bunch gruss to which pertains the property of cond growih--springing ny vigorously m ausumn al the failure of the spring shoot IL seems to be universal On the western slope Of our continent, the buffalo grass IS the eustern slope o the Rocky Mountains; and was found sufficient for the sust e. nance of their horses, even in the dead of winter- even in the months of December, January and Feb ruary-in the deep gorges and on ihe lnly peaks of the Sierra Nevada, (snowy Mountain of California; when the wind had blown the snow from some expo sed point Or the sun had melted it in the cove, their oM large fires, built of colossal pines and ce- dars had melted circle in the deep snow about the camp.
 The Rocky Mountains, whose very name induces ideas of impassablIty, shown 10 be not the or- midable barriers supposed. Captain F. crossed them al ''loHr different places, instead of being deso- late and impossible, shown to have many excel lent pa sses (of which the South Pass is the finest and 10 embosom beautiful valleys. caves and parks, with lakes and mineral springs, rivalling and sur passing the enchanting parts of the Alpine re- gions in Switzerland. The Great Salt Lake, one of 1 lhe wonders of naiure and perhaps without rival in the world, (being saturated solution oi salt, oi a hundred miles diameier) is for the first time ieveal- ed 10 our view by one who has surveyed it's shores l and naYisated it's waters. The Bear river valley, with its rich bottoms, fine grass. walled up noun tains, hot springs, mineral springs, soda fountains, volcano rock, volvcanc crater, and saline etores- cences and four thousand five hundred feet above the sea is for the first time described. The same oi the Sierra Nevada--of the rivers Sacramento and San l Joaquin, winch constitute the waters of the Bay oI San Francisco-and the same ol the Great Desert, and it's Arab inhabitants which lies south o the iali- iude of that bay, and extends many degrees east to- | wards the Rocky Mountains. None of these objects have heretofore been described hy any traveller"
 The Beneventu,a river, which has place on so many maps, and whose is traced from ille Rocky Mountains to the Pacific, IS declared to have no existence but in the nnas nation of writers and map makers. Of the geographical discoveries and descriptions, the most striking Is that Of the Great BasIn, vast interior plain, which lies between the Sierra Nevada and Ihe Rocky Mountains eas and west, and between the Blue mountains and the | Wahsatch on the south. and embracing area o five or six hundred miles dIameIer. Tue elevation of lhe Sierra Nevada being more lofty than the Rocky Mountains accounts for the formal ion of this Great Basin, as Captaia Fremont calls il, and o
 which he is the first To announce its existence 10 the world. basin which may hold such a kingdom as France, and which has for it's rim circle Of noun taIns whose summiIs penetrate the regions o eterna snow, is certainly new and grand object to be re- vealed to conteInp ation; and it's non-dscovery heretofore, can only he atir buied 10 it's position il that part of Spanish Americ3 Ohe CallOrnias) from which Spanish jealousy excluded every foreign eye Its existence now established. Caplain Fremon was in and around iteight months getting around i
 and never out of sight of snow capped mountains it's own elevation being upwards of four thousand lee above the His description of il will be read | with profound interest; and FREMoNT's BASIN is assuredly he name whCh jusilce and propriey would l besiow upon if.
 There arc other portions of this condensed nara tive which deserve notice, both on account of the country of which they treat, and the novelties which | the expedition exposed To view, but whicl, must pass for the present-hs having already overleaped it's allotted hngth