Animals should be herded during the day at such distances as to leave sufficient grass undisturbed around and near the camp for grazing through the night.
METHOD OF MARCHING.
Among men of limited experience in frontier life will be found a great diversity of opinion regarding the best methods of marching, and of treating animals in expeditions upon the prairies. Some will make late starts and travel during the heat of the day without nooning, while others will start early and make two marches, laying by during the middle of the day; some will picket their animals continually in camp, while others will herd them day and night, etc., etc. For mounted troops, or, indeed, for any body of men traveling with horses and mules, a few general rules may be specified which have the sanction of mature experience, and a deviation from them will inevitably result in consequences highly detrimental to the best interests of an expedition.
In ordinary marches through a country where grass and water are abundant and good, animals receiving proper attention should not fall away, even if they receive no grain; and, as I said before, they should not be made to travel faster than a walk unless absolutely necessary; neither should they be taken off the road for the purpose of hunting or chasing buffalo, as one buffalo-chase injures them more than a week of moderate riding. In the vicinity of hostile Indians, the animals must be carefully herded and guarded within protection of the camp, while those picketed should be changed as often as the grass is eaten off within the circle described by the tether-rope. At night they should be brought within the chain of sentinels and picketed as compactly as is consistent with the space needed for grazing, and under no circumstances, unless the Indians are known to be near and an attack is to be expected, should they be tied up to a picket line where they can get no grass. Unless allowed to graze at night they will fall away rapidly, and soon become unserviceable. It is much better to march after nightfall, turn some distance off the road, and to encamp without fires in a depressed locality where the Indians can not track the party, and the animals may be picketed without danger.
In descending abrupt hills and mountains one wheel of a loaded wagon should always be locked, as this relieves the wheel animals and makes every thing more secure. When the declivity is great both rear wheels should be locked, and if very abrupt, requiring great effort on the wheel animals to hold the wagon, the wheels should be rough-locked by lengthening the lock-chains so that the part which goes around the wheels will come directly upon the ground, and thus create more friction. Occasionally, however, hills are met with so nearly perpendicular that it becomes necessary to attach ropes to the rear axle, and to station men to hold back upon them and steady the vehicle down the descent. Rough-locking is a very safe method of passing heavy artillery down abrupt declivities. There are several mountains between the Missouri River and California where it is necessary to resort to one of the two last-mentioned methods in order to descend with security. If there are no lock-chains upon wagons, the front and rear wheels on the same side may be tied together with ropes so as to lock them very firmly.
It is an old and well-established custom among men experienced in frontier life always to cross a stream upon which it is intended to encamp for the night, and this rule should never be departed from where a stream is to be forded, as a rise during the night might detain the traveler for several days in awaiting the fall of the waters.
STORMS.
In Western Texas, during the autumn and winter months, storms arise very suddenly, and, when accompanied by a north wind, are very severe upon men and animals; indeed, they are sometimes so terrific as to make it necessary for travelers to hasten to the nearest sheltered place to save the lives of their animals. When these storms come from the north, they are called "northers;" and as, during the winter season, the temperature often undergoes a sudden change of many degrees at the time the storm sets in, the perspiration is checked, and the system receives an instantaneous shock, against which it requires great vital energy to bear up. Men and animals are not, in this mild climate, prepared for these capricious meteoric revolutions, and they not unfrequently perish under their effects.
While passing near the head waters of the Colorado in October, 1849, I left one of my camps at an early hour in the morning under a mild and soft atmosphere, with a gentle breeze from the south, but had marched only a short distance when the wind suddenly whipped around into the north, bringing with it a furious chilling rain, and in a short time the road became so soft and heavy as to make the labor of pulling the wagons over it very exhausting upon the mules, and they came into camp in a profuse sweat, with the rain pouring down in torrents upon them.
They were turned out of harness into the most sheltered place that could be found; but, instead of eating, as was their custom, they turned their heads from the wind, and remained in that position, chilled and trembling, without making the least effort to move. The rain continued with unabated fury during the entire day and night, and on the following morning thirty-five out of one hundred and ten mules had perished, while those remaining could hardly be said to have had a spark of vitality left. They were drawn up with the cold, and could with difficulty walk. Tents and wagon-covers were cut up to protect them, and they were then driven about for some time, until a little vital energy was restored, after which they commenced eating grass, but it was three or four days before they recovered sufficiently to resume the march.