[8] It is widely believed that individuals with surnames Amiss and Bayse received land grants from Lord Fairfax in the Amissville area.

[15] Amissville is near the site of a minor action on July 24, 1863, involving George A. Custer's Michigan Brigade of cavalry following the Confederate loss at Gettysburg.

Custer and his troops traveled from their headquarters and camp near Amissville and attacked with cavalry and artillery from the southern slope of Battle Mountain (about 5 miles southwest of the village), but his forces were vastly outnumbered and after a brisk and severe fight, forced to retreat north and east over Battle Mountain back to Amissville.

Two of Custer's men were awarded the Medal of Honor in 1893 for their part in capturing Confederate artillery at Battle Mountain.

At Corbin's crossroads, during the fight, Gen. Stuart narrowly escaped death when he turned his head and a Union bullet clipped off half of his moustache.

In late August 1862, Gen. Stuart and his cavalry were scouting around Maj. Gen. John Pope's Federal Army of Virginia, elements of which were moving towards Thoroughfare Gap in Fauquier County.

Predominant and oldest (approximately 704 million years old, +/- 5 million years, based on the U-Pb zircon geochronology dating method, coinciding with the initial rifting of the supercontinent Rodinia) is the Neoproterozoic alkali feldspar granitic rock of the Robertson River Igneous Suite.

White quartz boulders and smaller fragments are common on and around Battle Mountain, a result of molten silica that was contained in the rhyolite lava and granitic magma that formed the volcano.

The Robertson River Igneous Suite extends from south of Laurel Mills (originating near Charlottesville) and runs north-northeast through Hackleys Crossroad and beyond in a band approximately four kilometers wide.

A fine-grained Precambrian arkosic sandstone and conglomerate, which Aaron Mountain is composed of, occurs on the contact between the Flint Hill Gneiss starting approximately two kilometers west of Laurel Mills and running north-northeast along a narrow band (starting out at approximately 1 kilometer wide and tapering down to 100 meters) in contact with the Robertson River Igneous Suite, terminating just south of U.S. Route 211.