Ok, my good friend Butterball wanted to pay me a visit from Bree. You all know how he is, super braggy. He told me he just got a brand new iPhone version 1 with 20 KB of RAM. I was like, “Okay, cool, Butterball. We’ll see you. Just don’t be braggy.”

He wrote me a long letter promising me that he wouldn’t be braggy, but then he told me about a problem that he had. He had too many footpaths coming up on his map. He couldn’t find the way easily. Every time he brought up the map, his iPhone crashed. Check out the shire with all of the footpaths!

Crazy Map With Footpaths!

I told him, “Don’t worry, I’ll just modify his map with a new layer with just roads on it instead of all the other extra crap.”

I was like, Open Street Map is pretty awesome, but they include a lot of stuff in their layers, and then they let you just claw back what you want. I think what we want to do is modify it so we only show the tags that we want, so your map doesn’t crash. Does that sound like a good plan?

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If you are like me, you like things fast. Hobbits aren’t know for this, but we Mappins a little different you know…. more to come.

Dear Bilbo,

What a calamity! Just this morning, I attempted to properly document Sandyman’s Mill in OpenStreetMap—you know, the watermill where they grind all the Shire’s grain—and I discovered to my absolute horror that OSM has no proper tagging schema for Shire watermills! Oh, they have man_made=watermill for those dreadfully generic watermills elsewhere in Middle-earth, but nothing that captures the essential hobbitish details: the number of grinding stones, the undershot versus overshot wheel configuration, or most importantly, the weekly flour production capacity (measured in seed-cake equivalents, naturally). I sat there at my mapping desk, GPS coordinates at the ready (SY 1234 5678, if you must know), completely flummoxed—rather like the time Bilbo tried to explain his Elvish poetry to the Gaffer. Looks up with determined gleam in eye

I realize I must take matters into my own furry-footed hands! If the wider OpenStreetMap community hasn’t created proper specifications for Shire watermills, then by the Green Dragon’s best ale, I shall create them myself.

“By Elbereth! A proper preset definition for hobbit watermills!” I exclaimed, nearly spilling my tea over the JSON structure before me. This beautifully formatted file would let any mapper document our mills properly—but first, I needed Sam’s expertise to determine which fields truly mattered. Next: I rush to Bag Shot Row, waving my GPS device at a bewildered Sam in his garden!

This is the json object that same and I came up with.

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