Washington fishing, hunting & river flow maps.

Saltwater

The coast and the Sound, covered.

Washington saltwater in Baseline Maps means NOAA buoy data — swell period, wave height, wind, water temperature — for every station off the Washington coast, tide predictions with solunar overlay for coastal and estuary stations, and WDFW regulations parsed for all 13 Puget Sound marine areas.

Razor clam diggers get WDFW-approved dig schedules for the coastal beaches in the same app they check the swell in.

FAQ

Washington questions, answered.

What app shows Washington river flows in real time?

Baseline Maps shows real-time flow (CFS), water temperature, and gauge height for 271 Washington rivers, pulled directly from USGS streamgages and refreshed every 15 minutes. Today’s reading is plotted against the historical median for the date, so you can tell at a glance whether a river is fishable.

How many GMUs are in Washington?

WDFW divides Washington into more than 130 numbered game management units (GMUs). Baseline Maps carries 161 Washington hunt boundaries: every numbered GMU plus the special deer areas, elk areas, and bighorn sheep, mountain goat, and moose units.

Is there a map of public hunting land in Washington?

Yes. Baseline Maps overlays land ownership on every Washington GMU — public versus private, plus BLM, US Forest Service, and Washington DNR boundaries — with private-parcel lines and owner information, so you know exactly where you can legally stand.

Does Baseline Maps include WDFW fishing regulations?

Yes. WDFW fishing regulations are parsed by individual river, lake, and marine area inside the app, and emergency rule changes are pushed within hours of WDFW posting them — no PDF hunting required.

Which Washington rivers have USGS flow gauges?

Most major fishing rivers do: the Skagit, Sauk, Stillaguamish, Skykomish, Snoqualmie, Yakima, Cowlitz, Kalama, Lewis, Hoh, Sol Duc, Bogachiel, Queets, Klickitat, Methow, and Wenatchee all report real-time flow. Baseline Maps monitors 271 Washington rivers and forks in total.

Does the app work offline in Washington’s backcountry?

Yes. Topo, hillshade, satellite imagery, parcels, and GMU boundaries can all be saved for offline use before you leave cell coverage — built for the Olympic rainforest and east-slope canyons where there is no signal.

How current is the river flow data?

Flow data comes straight from the USGS Water Services feed, which updates roughly every 15 minutes. Baseline Maps does not resample or smooth it — what the gauge reports is what you see.