Rancho Calderón somewhere between Zapotlanejo and Tepatitlán Mexico

When I was very young (1940-50's) I spent time with my family in Jalisco on Rancho Calderón, which is reached by following the road between Zapotlanejo and Tepatitlán and leaving it about halfway, to reach the rancho which was pretty far from the highway. Rancho Calderón was in the Valle de Calderón and the adobe structures were quite ancient. I think I remember hearing that the main hacienda was built in the 1600's or 1700's. It was owned by the Romo (de Vivar) family but purchased in the early 20th century by Salvador Padilla. Salvador Padilla had married María Guadalupe "Lupe" Romo and purchased the failing rancho to "keep it in the family." Salvador and Lupe were probably born shortly after the turn of the century, since Lupe is still alive and in her late 90's. She was the daughter of Luis Romo (de Vivar), one of the sons of my GGGF José de los Santos Romo (de Vivar). I have no idea whether it was he or one of his sons who owned the rancho. In a sad turn of affairs, the rancho was seized by the government in the late 1900's and is now at the bottom of a reservoir. I see a big reservoir on the Google map, which is north of the highway and is long enough to fill the middle third of the distance between Zapotlanejo and Tepatitlán--but I'm not even sure if the rancho was north or south of the highway.

I am interested in any information anyone has about the history of the Rancho Calderón, because it may help me in my otherwise stymied research into the Romo de Vivar aka Romo family of Jalisco. It would also be interesting to find out the name of the new lake--probably Calderón, because it was the result of flooding the Valle de Calderón, but one can never assume.