artment of New Mexico.
On the 20th of February, orders came from General Hunter,
directing Colonel Slough and the First Regiment of Colorado
Volunteers to proceed with all possible despatch to
Fort Union, or Santa Fe, New Mexico, and report to General
Canby for service.

Two days thereafter, the command marched out of Camp Weld
two miles up the Platte River, and in due time encamped
at Pueblo, on the Arkansas River. At this point further
advices were received from Canby, stating that he had
encountered the enemy at Valverde, ten miles north of
Fort Craig, but, owing to the inefficiency of the newly
raised New Mexican volunteers, was compelled to retire.
The Texans under Sibley marched on up the Rio Grande,
levying tribute upon the inhabitants for their support.
The Colorado troops were urged to the greatest possible
haste in reaching Fort Union, where they were to unite
with such regular troops as could be concentrated at that
post, and thus aid in saving the fort and its supplies
from falling into Confederate hands. Early on the
following morning the order was given to proceed to Union
by forced marches, and it is doubtful if the same number of
men ever marched a like distance in the same length of time.

When the summit of Raton Pass was reached, another courier
from Canby met the command, who informed Colonel Slough
that the Texans had already captured Albuquerque and
Santa Fe with all the troops stationed at those places,
together with the supplies stored there, and that they
were then marching on Fort Union.

Arriving at Red River about sundown, the regiment was
drawn up in line and this information imparted to the men.
The request was then made for all who were willing to
undertake a forced march at night to step two paces to
the front, when every man advanced to the new alignment.
After a hasty supper the march was resumed, and at sunrise
the next morning they reached Maxwell's Ranch on the
Cimarron, having made sixty-four miles in less than
twenty-four hours. At ten o'clock on the second night
thereafter, the command entered Fort Un