Over stretches of water and sand islands, aeolion agitation bore volcanic ash and dust and sand, which found lodgement in deep lagoons and moist places. When the later igneous activity stirred the western mountains, air currents carried the ashes high and far, and then for days and days they sifted down into the wastes of water on Nebraska. Thousands of acres in the Holdrege-Orleans district, and in the Scotts Bluff-Wildcat mountains, and in the Pineridge, contain beds of volcanic ash, of fine commercial quality.

Aerial combinations of ashes, dust and sand, and glauconite came over the wastes. Into the shallow waters they sank, and interstratified with sub-aerial and lacustrine substances, and formed the rich Loess soil.

When the last terrestial convulsion came, the Omaha-Lincoln-Wichita range growled and rumbled in its subterranean depths, the Ozarks hesitated and finally thrust their ragged summits higher, the Sierras came up out of the sea, and lava beds spread over Idaho ; the Black Hills rose towering, and Hartville island came up again to the sun. Nebraska hesitated for a time, deciding whether to become an agricultural state or break up into tumbled mountains. Ah, what a time that would have been to have lived, and seen old Nature build the heart of the American continent.

A nearly mountain range, "that died a bornin' " ran from Furnas county to Dawes and Sioux counties. Nearly volcanoes sprung the earth in a dozen counties of Nebraska. The Goshen Holes, east as far as Broadwater, Nebraska, swelled like a poisoned carcass, and there today are rounded domes and anticlines, of older rocks surrounded by the new, and geology points prophetic fingers to the deformations.