Geological Chronicle
Mädler is a lunar impact crater located on the mare that joins Sinus Asperitatis in the north to Mare Nectaris to the southeast. The formation spans an official diameter of 27.58 kilometers.
To the west is the prominent crater Theophilus, and Mädler lies amidst the outer rampart. It is recorded in the IAU Gazetteer under quadrangle LAC-78.