I really want to use that mountain style at some point, but I'm lazy and want a short cut. I messed around in Illustrator for 10 minutes and came up with this (with a little texture added in Photoshop to make it look like it's been inked):

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Obviously it could do with some variation in the length and shape of the lines, but that's dead simple. Getting the end points of the ranges to look right might be a bit fiddly though. I'll have to play around some more and see whether I can get it to work. What do you think could make it closer to that style? If I can get it right I'd be happy to post a tutorial so you can use it in these maps