Visitor guide for Columbia, California, for iPhone. Provides information about every business and attraction of interest to a visitor to Columbia, a California Gold Rush town in the Sierra foothills. Includes descriptions and photos of all attractions, lodging, places to eat and drink, shopping, and services. Also includes information on Columbia State Historic Park, located in the downtown area of Columbia. Has details on the history of the area. Also includes maps, events, photos, and directions for getting here and for getting to places in the area such as Yosemite, other Gold Country towns, and the high country. Does not require Internet access except for initial install. This is important because cell phone and Wi-Fi service can be marginal in this area. The app updates information when Internet available. The app also has a "My Things to see and do" list that can be viewed and can be added to by tapping on a button in the screen for each business and historical site. Events can also be added to the user's Calendar by tapping on a button.