Below are links to a few CSV files I pieced together the below for use with my Garmin i3. Whilst I will not vouch for their absolute accuracy, they were pieced together either with data from trusted sources or via Garmin’s MapSource application. So far, everything seems to get you within sight of your destination.

• Costco Stores: This list of Costcos covers stores in California, Oregon and Washington, including notations of gas stations. It is based on the list on Costco.com.

• California State Parks: The coordinates for this California State Park list was taken from the California State Park Web site, which very nicely lists the coordinates for parks.

• The California Missions: This list of the California Missions was my first attempt – with a small list – to create a custom POI list.