Is there a map available showing the major high voltage transmission lines in California?

Yes, there are several maps available that show the major high voltage transmission lines in California. Here are a few resources:

1. California ISO Transmission Map: The California Independent System Operator (CAISO) provides an interactive map that displays the major transmission lines in California. This map allows you to zoom in and out and view the lines in detail. You can also access additional information about each transmission line, such as its voltage level and capacity.

2. U.S. Energy Information Administration (EIA) Electricity Data Browser: The EIA provides a map of the major high voltage transmission lines in the United States, including California. This map is less detailed than the CAISO map, but it provides a broader overview of the transmission system.

3. Google Earth: Google Earth is a virtual globe that allows you to view satellite imagery and other geographic data. You can use Google Earth to find and view the major high voltage transmission lines in California. To do this, simply search for "transmission lines" or "power lines" in the search bar.

These resources can be useful for understanding the layout of the transmission system in California and how it connects different parts of the state.