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Data Coverage

Waderly pulls real-time flow, weather, and fishing-condition data from public sources and shows you what's happening on the water before you go. This page lists exactly what's available, and where.

Available everywhere (all 50 states)

These data sources are national, so they show up for any gauge or location you search — no state restrictions.

State-by-state layers

These overlays depend on a state agency (or a small group of them) publishing the underlying data, so coverage grows one state at a time.

Wild trout streams

State-designated wild trout waters, shown as a map overlay.

Pennsylvania New York New Jersey Maryland Virginia West Virginia North Carolina Wyoming

Trout stocking schedules

Scheduled and recent hatchery stocking events by water.

Pennsylvania New Jersey New York Connecticut

Special fishing regulations

Special-regulation water boundaries and the rules that apply.

Pennsylvania

Official access points

Verified, agency-sourced boat launches and fishing access points.

Pennsylvania

PA has official state access-point data; everywhere else Waderly shows a baseline from federal boating-access and OpenStreetMap data.

Want your state covered? Request it — look for "Request a feature" on the Waderly homepage.

State gauge pages

Every state below has its own hub page linking to all of its indexed USGS gauges.

Featured states

Pennsylvania
Trout streams, freestone creeks, and big Susquehanna water.
 New Jersey
Pine barrens streams, coastal rivers, and Delaware tributaries.
 New York
Catskills, Finger Lakes tributaries, and Great Lakes flows.
 Montana
Big western rivers, tributaries, and snowmelt-driven gauges.
 Colorado
Tailwaters, freestones, and runoff-sensitive mountain streams.
 North Carolina
Blue Ridge creeks, tailwaters, and piedmont rivers.

All states

Check conditions near you