Where two or more maps draw the trail within each other’s uncertainty, the line is their average weighted by each map’s accuracy; where only one map shows it, its line is dashed and its corridor is that map’s accuracy. A compiled corridor drawn from a map counts as that map, not as a second witness. How it’s done, and where it may be wrong: how this map was made.
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Another map that shows this trail, traced and melded in, narrows its corridor. Members trace trails on any map open for tracing — Trace a trail on the map — and confirm one another’s; see traces waiting for a confirmation.
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From Project Homeland v0.5.2, a draft built from colonial-era and later maps: the names and lines are those mapmakers’, until nations’ own knowledge corrects them. Corrections: [email protected].
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