Maquipo is listed in Almada's Diccionario but it gives no new information, really, since you already know it is in the vicinity of Alamos. Out of curiosity I did a search on the name. There is a site that claims to offer a map of El Maquipo. Don't bother with it. "Page not found" is the response to that link and a very large number of others for maps of Mexican towns offered by what looks like a site in England.I did find a site, untitled, that involved Alamos. It describes a project to bring "comunicacion telefonica" to various rural communities. It mentions "los Ejidos,Osobampo, El Tabelo, El Zapote, El Rodeo, El Paso, Piedras Verdes, La Quintera, Cazanate,Cerro Colorado, El Maquipo,Cochibampo, La Vinateria, La Aduana, El Chinal, Burapaco, y la Colonia Urbana Nueva Esmeralda." I don't know if these are considered ejidos, or if Ejidos is the name of a community, but I copied the list in case anyone is puzzling over another of these names.