It's more than just trails. It's a complete map that paints the picture. Icons indicate points of interest like old buildings, corrals or palm groves. Areas that are more interesting display at a higher zoom level to make them easier to discover. There is a lot of detail.
California Trail Map
I am the creator of the map. It does not use the publicly available data that is used in other maps. I make the map by studying the regulations for each area and in most cases plotting out the trails using satellite imagery because the data doesn’t exist or isn’t...