That said, there is this: In 1845, Henry Rowe Schoolcraft compiled the "Philological and Historical on the Aboriginal Names and Geographical Terminology of the State of New York." He writes that the word “Ontiora” is from the Iroquois, who came through the region on war parties, and that Ontiora meant “mountains of the sky.” The description, he wrote, stems from the “states of the atmosphere when this group appears like a heavy cumulus cloud above the horizon and this is clearly the feature denoted.”