A route guide that says exactly what it knows.

Cornish Miles is an independent guide to running in Cornwall: coast path, woodland, moor and the flat traffic-free miles in between, plus a calendar of the county’s races. It is built by a runner, not a content farm, and its one organising principle is that you should always be able to tell how much a page actually knows.

How route data is made

Every route starts as desk research: the line is computed from real OpenStreetMap footpaths, elevation from open elevation models, and the distance and climb figures you see are derived from that geometry rather than typed in and hoped about. Those pages are labelled desk-researchedand their maps say “mapped route line” — real geography, not yet a promise.

When a route gets run, the mapped line is replaced with the GPS track from the run itself and the page flips to field checked, with the date shown. The elevation profile, the map line and the GPX download all come from that recording (with timestamps and device data stripped). A route is only ever called verifiedonce the practical details — parking, buses, access — have been confirmed too. If a page hasn’t earned a word, it doesn’t use it.

How the race calendar works

Race dates go stale, and a stale date on a website can cost someone a booked cottage. So the calendar is curated by hand, never scraped: every race links to its organiser’s page as the source of truth, and dates are marked provisional or TBC until they have been checked there. Nothing is displayed as confirmed without a “last checked” date to back it up.

What this site is not

There are no affiliate links, no sponsored routes and no advertising. If that ever changes it will be disclosed on the page where it happens, plainly. Route lines are derived from OpenStreetMap data © OpenStreetMap contributors (ODbL); maps are rendered on OpenTopoMap tiles with their attribution shown.

If you spot something wrong — a moved path, a changed car park, a race date that slipped — the kindest thing you can do is check the organiser or landowner’s page and run the route with fresh eyes. This site would rather be corrected than confidently wrong.