Skip to content
Boating Hubs

River Explorer

Rivers in Maryland

Community-mapped river reaches across Maryland. Length, water type, and live USGS flow where a gauge sits on the water.

  • Free to browse
  • USGS-sourced rivers
  • Open in the app for live flow and tracking

State rankings

Waterways With the Most Boat Launches in Maryland

River data from the USGS National Hydrography Dataset (public domain). Live flow, where shown, from USGS Water Data.

More free tools

Other tools in this kit

View all tools
Boat LaunchesFind public boat ramps on a map, with the water each one sits on.
Boating License CheckPick your state, boat and birth year for a yes or no from the state's own boater education rule, quoted and linked.
Route PlannerDrop stops on a map and watch distance and drive time add up. Export a GPX or share the link.
Skill DrillsInteractive 3D drills, one decision at a time. Pick wrong and you watch it fail, then learn why.
Everything MapListings, trails, spots, clubs and public land on a single full-screen map. Switch layers on and off, then tap any point for the details.
Boat ClubsBrowse local clubs with meeting info and how to join, or start your own for free.