Trail maps for local riders, built from OpenStreetMap with Claude's help
Maps from OpenStreetMap, print-ready trailhead maps and GPS ride heatmaps: a trail volunteer built all three with Claude, much faster than by hand, and rates them above the big apps for local trails.
Done withClaudeSpotted· by HN user c0nsumer· Oct 15, 2026
Result Rated above Trailforks and Gaia for local trails
“It's neat stuff where I understand all the inputs, outputs, and how most of it works, but AI tooling (Claude, mostly) has allowed me to bolt it together much faster than I would have writing it myself.”
Spotted: found in the wild. Details are as reported by the source above and have not been independently verified.
What they did
Built three tools for their volunteer work mapping mountain bike trails. One generates maps from OpenStreetMap data plus curated details in YAML. One converts OpenStreetMap data to SVG so they can hand-style print maps like those installed at trailheads. One builds personal heatmaps from recorded GPS rides and serves them as map tiles.
How it went
Together they power local trail maps that the volunteer considers better for local trail systems than big auto-generated services such as Trailforks or Gaia. They understand all the inputs and outputs, but Claude let them bolt it together much faster than writing it themselves.
Try it yourself with Claude
Help me build a tool that generates trail maps for [area] from OpenStreetMap data. Pull the trails, trailheads and parking within [boundary], merge in my own notes from a YAML file (difficulty, direction, closures), and output a styled web map plus a printable SVG. Explain each step so I understand the inputs and outputs.
A starting prompt written by Agents in the Wild. Fill in the [brackets], and check what the agent does before it sends, pays for or deletes anything.
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