The Battle of Mine Creek, fought on October 25, 1864, in Kansas, stands as a critical and often overlooked engagement of the American Civil War. This intense cavalry battle, also known as the Battle of the Osage, was a pivotal moment during Confederate Major General Sterling Price’s ambitious Missouri Expedition, more commonly referred to as Price’s Raid. It marked the second-largest mounted cavalry engagement of the entire war, showcasing the ferocity and tactical challenges of mobile warfare in the Western Theater.
Occurring just two days after their significant defeat at the Battle of Westport, the Battle of Mine Creek saw two divisions of Price’s weary Army of Missouri clash with two Federal brigades led by Colonels Frederick Benteen and John Finis Philips. The stakes were incredibly high for the retreating Confederates, who desperately sought to escape Union pursuit and protect their vital, lengthy wagon train. This engagement would ultimately seal the fate of Price’s grand design to reclaim Missouri for the Confederacy.
Price’s Raid: A Bold Gambit and a Costly Retreat
In the autumn of 1864, Major General Sterling Price launched a daring raid into Missouri with approximately 8,000 troops, aiming to restore Confederate control over the state and influence the upcoming presidential election. After initial successes, Price’s forces encountered fierce Union resistance, culminating in a major defeat at Westport, Missouri, on October 23. This loss forced Price to abandon his primary objectives and initiate a desperate retreat south, hoping to reach the safety of Confederate lines.
Crossing into Kansas, the Confederate army, burdened by a ten-mile-long wagon train filled with supplies and captured goods, moved slowly toward Fort Scott, a significant Federal supply depot. Price, with one division, pressed ahead, while his remaining two divisions were tasked with protecting the vulnerable wagon train. On October 24, the weary Confederates encamped along the Marais des Cygnes River, unaware of the relentless Union pursuit closing in behind them.
The Relentless Pursuit to Mine Creek
The morning of October 25 brought renewed Union attacks, forcing the Confederates to withdraw further south. Approximately 2,500 Federal cavalrymen, under the command of Colonel Frederick W. Benteen and Colonel John F. Philips, components of Major General Alfred Pleasonton’s Provisional Cavalry Division, were hot on their heels. A running skirmish ensued over the nine miles separating Trading Post and Mine Creek, with Union forces continuously pressing the Confederate rear guard.
The critical moment arrived as the Confederates attempted to cross Mine Creek. The wagons, essential to Price’s continued retreat, became a significant impediment at the ford, slowing their progress to a crawl. This delay allowed the Federal brigades to close the distance rapidly. With the Union cavalry bearing down, the Confederate rear guard, commanded by Major Generals John S. Marmaduke and James F. Fagan, was compelled to form a hasty defensive line, attempting to buy precious time for the bulk of their forces to cross.
The Decisive Cavalry Clash
The speed and ferocity of the Union assault left no time for the cavalrymen to dismount, making the engagement at Mine Creek one of the largest exclusively mounted cavalry battles of the entire Civil War. Union troopers, seizing the advantage of surprise and momentum, launched a devastating charge against the Confederate lines. The outnumbered and overwhelmed Southern forces were quickly surrounded.
Despite its intensity, the battle itself lasted only approximately 30 minutes. The Union victory was swift and decisive. Federal troops captured an astounding 600 Confederate soldiers, including two high-ranking officers: Brigadier General John S. Marmaduke and Brigadier General William L. Cabell. Confederate casualties, including killed, wounded, and captured, totaled an estimated 1,200 men, a crippling blow to Price’s already depleted army. In stark contrast, Union casualties were comparatively light, numbering around 100.
Aftermath and Lasting Legacy
Following the stunning victory at the Battle of Mine Creek, Union forces maintained their relentless pursuit of Sterling Price and his shattered command. That same evening, Price, desperate to accelerate his retreat, ordered half of his remaining wagons to be burned. The Federal pursuit continued unabated, pushing the Confederates through Missouri, Arkansas, and eventually into Oklahoma. The profound losses suffered during Price’s Raid, culminating in the decisive defeats at Westport and Mine Creek, effectively ended any significant Confederate threat to Kansas for the remainder of the war.
The valor displayed by Union soldiers at Mine Creek was officially recognized with the Congressional Medal of Honor awarded to Private James Dunlavy for his courageous capture of Confederate General Marmaduke. Today, the Mine Creek Battlefield is preserved as a State Historic Site near Pleasanton, Kansas, offering visitors a poignant reminder of this pivotal Civil War engagement. It serves as a testament to the brutal realities of the conflict and the lasting impact it had on the Western frontier.
Mine Creek Battlefield State Historic Site
- 20485 Kansas 52 Scenic
- Pleasanton, Kansas 66075
- 913-352-8890
The Battle of Mine Creek, though often overshadowed by larger Eastern Theater battles, played a crucial role in securing Union control of the Trans-Mississippi West. It highlighted the devastating effectiveness of concentrated cavalry attacks and solidified its place as a significant chapter in American military history.


