Re: Big meh here...
Why not? They show surface features, paths and tracks as well - or at least, the ones I have do. I use them when I go fossiling. I wish I could attach a screeny.
And as has been pointed out elsewhere, Google don't use standard colouring for their maps - I can read them, but it's far, far easier to use another source that has stuck to conventions and has a history of being definitive.