In 1841 John L. Stephens was the first to document parts of the Mayapan site with two important illustrations. The first was of the Q-152 round temple, and the second was of the Pyramid of Kukulkan. He was the first in a long string of explorers who drew the ruins of Mayapan. The first large-scale archeological site surveys were not conducted until 1938 by R.T. Patton. These surveys mapped the main plaza group and the city wall, and were the basis of later maps (Russell 2008).