An official website of the United States government
A .mil website belongs to an official U.S. Department of Defense organization in the United States.
A lock (lock ) or https:// means you’ve safely connected to the .mil website. Share sensitive information only on official, secure websites.

Home : News : Article View
NEWS | Oct. 12, 2016

Colorado Guard relives its history at Glorieta Pass, N.M., a Civil War battle site

By Lt. Col. Elena O'Bryan Colorado National Guard

GLORIETA PASS. N.M. - The sounds of Colorado National Guard musket fire thundered across lonely Glorieta Pass. They quickly died. This time, there was no return fire.

CONG staff traveled to Glorieta, New Mexico from Sept. 16-18 to trace the actions of their predecessors at the Battle of Glorieta Pass, 154 years earlier.

"A staff ride is where the students are the teachers," said former CONG historian U.S. Army Maj. Adam Morgan.

A cadre of Colorado Army National Guard chief warrant officers guided staff through the battle sites.

Also known as the Gettysburg of the West, the Battle of Glorieta Pass unfolded on sparsely wooded, steep ridges and within narrow, rugged canyons. For three days in 1862, March 26-28, Union regulars and volunteers from Colorado and New Mexico clashed with Confederates from Texas along the Sante Fe Trail at the southern tip of the Sangre de Cristo Mountains, southeast of Santa Fe.

Glorieta Pass was a means to an end for the Confederates. Their objective was to take control of Fort Union, barely 100 miles to the northeast, and, from there, to launch a campaign that would appropriate the mineral wealth of the West for the Confederacy.

Only one thing stood in their way: the Union Army made up largely of the First Colorado Infantry Regiment, Colorado National Guard—a territorial militia, established two years earlier, of men from different walks of life with little military training.

In response to the Confederate threat, the Coloradans, under the command of U.S. Army Col. John P. Slough, a Denver attorney, mobilized and began a march of 400 miles that they completed in only 18 days.

On the way to confront the Confederate Force, the Colorado troops stopped at Fort Union to obtain supplies and grow their force.

U.S. Army Col. Gabriel Paul, Commander of the Fourth New Mexico Volunteers at Fort Union, tried to hold up the Colorado regiment, arguing that they should wait until reinforcements from California and Kansas arrived. He based his decision on orders from U.S. Army Col. Edward R.S. Canby, Commander of Union forces in the New Mexico Territory.

Slough disagreed, pulled rank on Paul, took command of Union forces at the fort, and led them toward Santa Fe.

"Col. Slough didn't want to wait around at Fort Union," said the adjutant general of Colorado, U.S. Air Force Maj. Gen. H. Michael Edwards. "The Colorado National Guard is still like that. We don't want to deploy somewhere to do nothing. We want to get the mission done and go home to our families and jobs."

After a five-hour drive from their headquarters in Denver, the CONG arrived at Apache Canyon, where Union Soldiers under the command of U.S. Army Maj. John Chivington, First Colorado Volunteers, encountered Confederate forces at the unit's first battle. Chivington, a former pastor, led men including a sheriff, a realtor and a probate judge.

"The Coloradans had almost no experience. The Confederates were very confident," said Dave Schmidt, former CONG historian.

Perched on a rise, the warrant officers described how Union forces took up positions on the sides of the canyon and fired down onto Confederate forces. The Union routed the Confederacy here, forcing the Texans to retreat.

One of the Colorado Soldiers received a mortal wound.

"Right out here was the Colorado National Guard's first killed in action," Morgan said, pointing down into the canyon. "This is where we spilled our first blood in defense of our country."

The Federals lost four Soldiers. The Confederates lost three, but 71 Texans became prisoners, one-fourth of the Confederate force in New Mexico.

The main phase of the battle had not yet begun.

During the next day, which was bright and clear, CONG staff visited various other points on the battlefield where Union and Confederate Soldiers fought for most of one day, filling the air with explosions and acrid smoke from cannon and rifle fire.

The Texans successfully pushed Union forces further down the Santa Fe Trail, until late afternoon on March 28, when they came upon the Union center atop Artillery Hill. Union resistance there slowed the Confederate advance, which then switched from the Federal right to the Federal left flank, overrunning them at Sharpshooters Ridge. Federals quickly withdrew to a place called Pidgeon's Ranch, a waystation for travelers. After a firefight with Confederates there, Union forces retreated.

Meanwhile, Chivington and his 500 Soldiers marched the length of Glorieta Mesa, as part of Slough's plan to strike the Confederates from the rear. The battle raged below, unbeknownst to them.

"Chivington didn't know the battle was going on due to acoustic shadow caused by Glorieta Mesa," said U.S. Army Chief Warrant Officer 2 Elisa Locke, a COARNG UH-60 helicopter pilot and civilian life skills teacher.

They came upon the sparsely guarded Confederate wagons filled with supplies at Johnson's Ranch at the base of the mesa. Chivington's men lowered themselves through 700 feet of steep terrain, regrouped, and attacked. They blew up the supplies and wagons.

Later that night, a snowstorm descended on both armies, in the midst of a truce to bury the dead and care for the wounded, and dropped a foot of snow.

With the loss of their supplies, and knowing that Canby was on his way from Fort Craig with a sizeable force, the Texans soon left the field at Glorieta, never to return.

"It's important to study history and to understand how a victory occurred," Edwards said. "We learn from the failures. We learn from the successes. We also come to understand that a victory can involve luck."

On the way back to Denver, CONG staff stopped at Fort Union, New Mexico, to survey what remained of its crumbling defenses. If the Confederates had made it that far, the Great Plains and a well-travelled route through Raton Pass would have sealed their conquest of Colorado and the West.

The actions of the First Colorado at the Battle of Glorieta Pass wove a different story for Colorado and for our nation.

"We've built our organization on this past, on the Colorado Guard's first action fulfilling its federal duties, and we continue to grow," Edwards said.

 

 

Related Articles
U.S. Soldiers with the Army National Guard speak with D.C. locals while patrolling Metro Center Aug 26, 2025. About 2,000 National Guard members are supporting the D.C. Safe and Beautiful mission providing critical support to the D.C. Metropolitan Police Department in ensuring the safety of all who live, work, and visit the District.
Guard Members From Six States, D.C. on Duty in Washington in Support of Local, Fed Authorities
By Sgt. 1st Class Jon Soucy, | Aug. 29, 2025
WASHINGTON – More than 2,000 National Guard Soldiers and Airmen from six states and the District of Columbia are on duty in Washington as part of Joint Task Force – District of Columbia in support of local and federal...

Lt. Gen. H. Steven Blum, chief of the National Guard Bureau, Maj. Gen. Russel Honore, Task Force Katrina commander, and Brig. Gen. John Basilica, 256th Infantry Brigade Combat Team commander, talk to news media during the aftermath of Hurricane Rita on Sep. 29, 2005. Basilica was appointed commander of Task Force Pelican, responsible for coordinating National Guard hurricane response efforts across the State. The task force included tens of thousands of National Guard Soldiers from Louisiana and other states.
Louisiana Guard’s Tiger Brigade Marks 20th Anniversary of Redeployment and Hurricane Response
By Rhett Breerwood, | Aug. 29, 2025
NEW ORLEANS – This fall, the Louisiana National Guard’s 256th Infantry Brigade Combat Team, known as the Tiger Brigade, commemorates the 20th anniversary of its redeployment from Iraq in September 2005, coinciding with the...

Alaska Air National Guard HH-60G Pave Hawk aviators and Guardian Angels, assigned to the 210th and 212th Rescue Squadrons, respectively, conduct a hoist rescue demonstration while participating in a multi-agency hoist symposium at Bryant Army Airfield on Joint Base Elmendorf-Richardson, Alaska, July 22, 2025. The symposium, hosted by Alaska Army National Guard aviators assigned to Golf Company, 2-211th General Support Aviation Battalion, included U.S. Coast Guard crews assigned to Sector Western Alaska and U.S. Arctic out of Air Stations Kodiak and Sitka, Alaska Air National Guardsmen with the 176th Wing rescue squadrons, U.S. Army aviators from Fort Wainwright’s 1-52nd General Support Aviation Battalion, Alaska State Troopers, and civilian search and rescue professional volunteers from the Alaska Mountain Rescue Group. The collaborative training drew on the participants’ varied backgrounds, experiences, and practices, to enhance hoist proficiency and collective readiness when conducting life-saving search and rescue missions in Alaska’s vast and austere terrain. (Alaska Army National Guard photo by Alejandro Peña)
Alaska Air Guard Conducts Multiple Hoist Rescues of Stranded Rafters on Kichatna River
By Staff Sgt. Seth LaCount, | Aug. 29, 2025
JOINT BASE ELMENDORF-RICHARDSON, Alaska — Alaska Air National Guard members with the 176th Wing rescued three rafters Aug. 28 after their raft flipped over on the Kichatna River.The Alaska Rescue Coordination Center opened...