Tiny GIS
An inspectable map made with browser APIs.
Site / routeStudy area, with a holeSelected
Edit or open GeoJSON
WGS 84 longitude, latitude. Point, LineString, Polygon and their Multi variants. Valid simple rings only; no antimeridian crossing. Maximum 2 MB / 50,000 positions. Files stay in this browser.
Illustrative features near Redlands, California. These are invented teaching geometries, not actual assets, roads or hazard boundaries.