The Ancients of this North Country were Greater in Strength and in Impression on the Land, and they Dug the Earth up More than they have Dug it up, and Cast Up Mighty Heaps of Earth to Get Ore
And After those Ancient Inhabitants who Worked All Manner of Fine Work and Covered the Whole Face of this Northward Land were Destroyed by God, the Nephites Wrote their Account of them in Reformed Egyptian
40:81 - 82, Qur'an
[God] shows you His signs. So which of the signs of God do you deny? [Or] have they not traveled through the land and observed how the end was for those before them? They were more numerous than themselves and greater in strength and in impression on the land, but they were not availed by what they used to earn.
{Ether 10:20 - 21}, Torah
And they built a great city by the narrow neck of land [Central America], by the place where the sea divides the land. And they preserved the land southward [South America] for a wilderness to get game. And the whole face of the land northward [North America] was covered with inhabitants.
{1 Nephi 1:2}, Torah
Which consists of the learning of the Jews and the language of the Egyptians.
So have they Not Traveled throughout the Earth and Observed How the End was for those Before them? For they were Greater in Strength and in Impression on the Land
Muley Point, Utah
"Grand Canyon"
Mexican Hat, Utah
Known Stone Quarries for Comparison
Modern Italian Carrera Marble Quarries
Modern Greek Marble Quarries
Cactus Mine, Arizona
Escondida Mine, Chile
Bingham Canyon Mine, Utah
Mount Whaleback Mine, Australia
Paros Mountain Quarry, Greece
Ancient Egyptian Sandstone Quarry (Gebel el-Silsila)
Ancient Egyptian Stone Quarry (Edfu)
Known Mine that Resembles the Ridges of the "Grand Canyon"
Rogers City Mine, Michigan
Known Canyon that is Actually Attributed to Recent Human Activity
Georgia's Little Grand Canyon / Providence Canyon
Unlike Arizona's Grand Canyon, Providence Canyon formed in decades, not millions of years. It began in the early 1800s because of farming.
Settlers cut down forests to plant crops but didn't protect the soil. Rain washed away the exposed dirt with nothing to hold it in place.
By 1850, fields had ditches three to five feet deep. These channels collected more rainwater, making erosion worse. Simple farming mistakes created one of Georgia's most beautiful places. - MSN
And so even according to the official narrative, this did not form in millions of years, but only decades. However, if this is even true, the only reason they would know this is because mankind was alive to witness its creation in the 1800s. Had this occurred thousands of years ago during the time of a past civilization, and our new civilization discovered it, scientists would have concluded that this formed over millions of years due to some sort of erosion and would have been completely and utterly wrong. This should be clear proof to anyone who can actually use reason that the conclusions that scientists make are pure assumption and are not facts at all.