Answer:
Francisco Vasquez de Coronado was a Spanish conquistador who explored the American Southwest.
The Viceroy of New Spain sent an expedition led by Francisco Vasquez de Coronado to search for the mysterious kingdom of the Seven Mysterious cities of Cibola (a mythical city that was supposed to be in the Southwest) and to take its riches, including perhaps gold, and take them back to Mexico City.
During the trip, the Grand Canyon, the Rio Grande and the southern Rocky Mountains were discovered. The expedition was a flop because no gold was found. Their discovery was a serious setback after the murderous long journey, the danger of the Indians and the lack of food. They had hoped for a lot, but this did not meet their expectations in any way.