The Apache Death Cave

While you are in Winslow, Arizona, watching a flatbed Ford speeding by, you might be interested in the nearby Apache Death Cave, described in this article from Atlas Obscura. The article relates the tale of its origin:

    In 1878, a group of Apache raiders attacked a Navajo encampment near the Little Colorado river. Almost every Navajo man, woman, and child was killed in the raid. When the Apache finished looting the encampment, only three girls remained and they were swiftly taken prisoner by the Apache.

    When the Navajo leaders got word of this attack, they sent out a team of 25 men to avenge the fallen encampment. They tracked the Apache across the land and blocked the borders to the region. However their efforts failed and the trails went cold, disappearing into the river and volcanic cinder. 

After news arrived of another raid on another Navajo encampment, more scouts were deployed and this time they found the Apache raiders: 

... The scouts had found nothing until they were startled by a blast of hot air from underground. Upon further investigation, the scouts discovered that the hot air was coming from an Apache campfire in an underground cavern beneath them, large enough to house both the Apache raiding party and their horses.

The Navajo attacked, gathering up dry sagebrush and driftwood to start a fire at the entrance of the cave. 

    A lone Apache man escaped from the fiery barrier and begged for mercy. The Navajo proposed the customary payment of goods and stock in exchange for forgiveness, and the Apache man agreed. However, when the Navajo asked about the three girls who had been captured, the Apache spokesman hesitated, confirming the Navajos' worst fears: The girls had already met their end.

    Enraged, the Navajo shot into the cave and added more fuel to the fire. Smoke and the sound of the Apache singing death songs filled the air. When the songs faded and the smoke cleared, the Navajo broke through the charred barrier of horse corpses. They retrieved their goods, and stripped off the valuables of the 42 Apaches who had suffocated inside of the cave.  

The article also includes photographs of the area, directions, and cautions about reaching the cavern.