Observed arrival · 2026-08-30
RelicPlot Maps the Places Where History and Permission Meet
A metal-detecting research tool that ranks Ohio locations using historical records, terrain signals, activity patterns, and access rules.
Field notes
The service builds its rankings from several evidence layers rather than from map pins alone: historical places, terrain and surface signals, recreation patterns, and published access rules. The homepage names five source families, including USGS, Ohio History, ODNR, local park rules, and OpenStreetMap. Example cards show seasonal access, distance, confidence-style scores, and a verification cue; the paid plan also describes offline rules, navigation bearings, and a private log for photos, coordinates, object types, and notes.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
One card from the complete issue