Rain God Chaac (image) The Earth Institute at Columbia University Share Print E-Mail Caption The Maya rain god, Chaac, is a common motif in Maya architecture. Chaac appears on this frieze at El Castillo. Credit Kevin Anchukaitis/Lamont-Doherty Earth Observatory. Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.