Old Stream Map V 1.2 -

: Integration of USGS Historical Topographic Map Collection, LiDAR digital elevation models, and municipal drainage records.

: A "Citizen Historian" tool where users can upload scanned family maps or local archives to improve the accuracy of the stream paths. Technical Implementation Old Stream Map v 1.2

: Push notifications when a user enters a zone that was historically a flood plain or significant waterway, providing context on local soil moisture and historical flood risks. : Integration of USGS Historical Topographic Map Collection,

: Identifies "lost" streams that have been diverted into underground culverts or sewer systems, marked with a distinct dashed neon-blue line. New in Version 1.2 : Identifies "lost" streams that have been diverted

The "Old Stream Map" serves as a high-fidelity hydrological time machine. Version 1.2 focuses on and AI-driven paleo-channel detection , allowing users to see where water used to flow before urban development or natural shifts. Core Components

: A granular slider that transitions the map view from current satellite imagery to 19th-century hydrographic surveys and geological "best-guess" paleo-channels.

: A mobile-integrated view that allows users to point their phone at a dry valley or street corner to see a 3D simulation of the original water flow.