This category is within the scope of WikiProject Mexico, a collaborative effort to improve the coverage of Mexico on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.MexicoWikipedia:WikiProject MexicoTemplate:WikiProject MexicoMexico articles
This category is within the scope of WikiProject United States, a collaborative effort to improve the coverage of topics relating to the United States of America on Wikipedia. If you would like to participate, please visit the project page, where you can join the ongoing discussions.
This category is within the scope of WikiProject Years, a collaborative effort to improve the coverage of Years on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.YearsWikipedia:WikiProject YearsTemplate:WikiProject YearsYears articles
Start a discussion about improving the Category:Establishments in Alta California by decade page
