These cute little agates have quite a history. They are tumbled by nature alone, having been carried in the Missoula floods, these agates have soft and smooth edges even though these are not found near a current body of water.
Another huge geologic event that changed the land after the lava flows were during the ice age around ten thousand years ago. Glaciers blocked a river that flows into the Columbia, and a gigantic lake filled up behind the ice. When the water broke through the ice, it caused some of the largest floods on earth to spill right through our area. Just imagine what the floodwaters carried! Rocks from the Montana mountains where the water backed up were dropped off here in the Columbia Basin as the water slowed down. The water eventually drained into the Pacific Ocean at the mouth of the Columbia River.