Complex sentence: "... there were 400 to 500 buildings at the site... but Bingham had only seen about 20," Lee said, which is more representative for the indigenous name of the site being Vilcabamba Grande.
Split into simpler sentences: ... there were 400 to 500 buildings at the site... but Bingham had only seen about 20, Lee said. Which is more representative for the indigenous name of the site being Vilcabamba Grande.