The most significant temple in Grupo E, Templo E-VII-Sub is among the earliest intact temples excavated at the site, with foundations going back perhaps to 2000 BC. The pyramid is part of a group with astronomical significance: seen from it, the sun rises behind Templo E-I on the longest day of the year and behind Templo E-III on the shortest day.
From the airstrip, find the sign pointing to Grupo E between the Catholic and Evangelical churches on the right side, from where it's a 10- to 15-minute walk.