"In one of the river villages Coronado found an Indian slave who said he was a native of Quivira, which he described as a rich and populous place far away in the east. Acting upon this information, with the Indian as a guide, Coronado started on April 23d, 1541, with his whole army to march to Quivira. From Cicuye or Pecos, whose ruins can still be seen by the traveller from the Atchison, Topeka and Santa Fé trains, the guide seems to have led the white men down the Pecos River until they were out of the mountains, and on to the vast plains where they soon met the countless herds of bison or "humpbacked oxen." For five weeks the Europeans plodded onward across what is now known as the "Staked Plains," following a generally easterly direction."
January 1, 1970
https://en.wikiquote.org/wiki/Pecos_Pueblo_Land_Grant