Keep secret spots
secret
Thalweg was born from a simple frustration: checking five different government websites before every fishing trip while worrying about protecting favorite spots from oversharing apps.
Our Mission
We believe anglers deserve a single, consolidated source for environmental intelligence without sacrificing their privacy. Other apps want you to share your spots, photos, and catches publicly. We do not.
Thalweg democratizes access to water conditions, weather, and tide data while keeping your personal fishing data completely private. Your catch logs, photos, and waypoints are protected by the same security standards used by financial institutions.
Thalweg
/ˈtälˌveg/ - The line of deepest points
along a river channel
Our Values
The principles that guide how we build and operate Thalweg.
Privacy First
Your fishing data is private by default. We use Row Level Security at the database level to ensure only you can access your catch logs.
Open Data
We believe environmental data should be accessible to everyone. We aggregate publicly available data from USGS and NOAA.
Regional Focus
Built specifically for Pacific Northwest waters. We understand the unique fishing opportunities and challenges of this region.
Passion Project
Thalweg was built by anglers who were frustrated with checking multiple websites before every trip.
Built for the Pacific Northwest
Thalweg is not a generic fishing app trying to cover every lake and pond in America. We are focused exclusively on Pacific Northwest waters: the rivers, streams, and coastal areas of Oregon and Washington.
This regional focus means we can optimize for the species, regulations, and conditions that matter to Pacific Northwest anglers. From Columbia River salmon to Deschutes steelhead, from coastal cutthroat to mountain trout, we cover the fisheries you care about.
Data Sources
We aggregate data from trusted government agencies and open data providers. All environmental data is publicly available; we just make it easier to access.
Technology
Built with modern, open-source technology. We believe in transparency about how we build and what we use.
The Team
Thalweg is built by a small team of Pacific Northwest anglers and software engineers who got tired of checking five websites before every fishing trip.
Team profiles coming soon. For now, we are focused on building the best fishing intelligence platform for Pacific Northwest anglers.
Get in Touch
Have questions, feedback, or want to report a bug? We would love to hear from you.