Real maps have mountain bumps, 'cuz mountain bumps are cool !

So what kinds of mountain bumps are you guys rocking these days?

JRR Tolkien arrowheads?

Or topographically-prone wiggly lines?

What about doing a bird's-eye thing with a shaded area of brown that is simply called a mountain range in the legend like I usually do when I don't feel like drawing that many mountain bumps?