River Intelligencefor the Pacific Northwest
River intelligence, biological data, a private Locker field journal, and Safety Check-In in one privacy-first web app. Mobile parity and fuller offline workflows are planned next.
Everything you need, all in one place
Stop juggling multiple websites and apps. Thalweg brings together the data sources Pacific Northwest anglers actually use.
River Briefings
At-a-glance river intelligence with real-time visibility, flow, pressure trends, water temperature, and source freshness.
Weather & Tides
Barometric pressure, incoming changes, bite windows, forecasts, tides, and marine context in one place.
Field Locker
A private field journal for activities, catches, notes, observations, media, and environmental snapshots.
Fish Passage Intelligence
Live dam counts and regional biological data from federal, state, and tribal sources with seasonal context.
Safety Check-In
A trip timer with expected return, check-in reminders, and overdue escalation to chosen contacts.
Interactive Maps
River overlays, weather layers, station markers, search, and mobile-friendly map interactions for the PNW.
One dashboard vs. scattered data
See how Thalweg simplifies your pre-trip research compared to checking multiple government websites.
| Feature | Thalweg | Scattered Sources |
|---|---|---|
| Consolidated river intelligence | — | |
| Private Locker field journal | — | |
| Real-time USGS water data | Separate site | |
| NOAA weather & tides | Multiple sites | |
| Interactive river maps | — | |
| Safety Check-In trip timer | — |
Keep secret spots secret
Your Locker entries stay private by default with strong account-level access controls. You decide what is shared and when.
- Strong access controls protect your account data
- Locker data stays private by default
- Explicit Streams & Drops sharing is planned, not public
- Your data is never sold or shared
- Export or delete your data anytime
Ready to fish smarter?
Built for Pacific Northwest anglers. Explore river intelligence, Locker journaling, and Safety Check-In in the pre-launch web app.
Pre-launch web access is available now. Pricing details are still being finalized.