I believe that volcano is El Feugo. I climbed it back in the 70's. There is a national park just outside C. Guzman that takes you up to Nevada de Colima another great mountain in the area (about 14,000ft). Great place. Lived 4 years in Guadalajara and went there often. Enjoy. Don't forget to stop in Tequila. They have another volcano behind the town that used to have a stone road almost to the top. We'd climb the communication tower at the end of the road. Doubt you'd be able to do that now.