# Baseline Maps

> Baseline Maps is an outdoor mapping and intelligence app combining real-time data from 1,100+ rivers across 13 US states + 2 Canadian provinces, NOAA buoys, tide charts, hunting GMU maps for OR/WA/ID, land-ownership parcels, and state regulations — used by anglers (Driftline mode), hunters (Ridgeline mode), foragers, and offroaders. Free 30-day trial, $34.99/year. Last-Updated: 2026-05-26.

## Brand

- Product name: Baseline Maps
- Also known as: Driftline (formerly the umbrella brand; now the fishing mode)
- Modes inside the app: Driftline (fishing), Ridgeline (hunting), Foraging, Dustline (offroad)
- Company: Driftline Co. LLC
- Domain (current): https://baselinemaps.io
- Legacy domain: https://getdriftline.com (301 redirects to baselinemaps.io)
- iOS App Store: search "Baseline Maps"
- Google Play: search "Baseline Maps"

## At a glance

- 1,100+ rivers monitored with real-time CFS (cubic feet per second)
- 1,339 hunting GMUs (game management units) across 9 Western states (WA, OR, ID, MT, CO, WY, UT, AZ, NM), with coverage expanding
- 13 US states + 2 Canadian provinces (BC, ON) for river coverage
- All NOAA buoys along the US Pacific Coast
- Tide charts for coastal and estuary stations
- 15-minute data refresh interval (USGS, NOAA)
- Offline maps with topo, hillshade, satellite, parcels
- Waypoint import/export compatible with onX Hunt, Gaia GPS, Google Earth (GPX/KML/KMZ)

## Modes

### Driftline (fishing)
- Real-time river flow data (CFS) for 1,100+ rivers
- Water temperature, gauge height, historical trend lines
- Custom flow alerts — set your fishable range, get notified when conditions hit
- NOAA buoy data (swell period, wave height, wind, water temperature)
- Tide predictions with solunar overlay
- Fishing regulations parsed by river and zone (OR, WA)
- Hatchery returns and salmon/steelhead run timing
- Catch logging with photos and weather context
- River comparison tool

### Ridgeline (hunting)
- Interactive GMU maps for 9 Western states (WA, OR, ID, MT, CO, WY, UT, AZ, NM)
- Land ownership boundaries — public vs private vs BLM/USFS/state DNR
- Hunting season dates and regulations by GMU
- Controlled hunt info with draw odds (Oregon)
- Offline topographic maps for backcountry use
- Hunt journaling and trip planning
- Weather + thermal/wind layers
- Background GPS trail recording
- Waypoint import from onX Hunt

### Foraging
- Burn-scar overlays for morel hunting
- USFS forage permit info
- Soil-temperature triggers for mushroom emergence

### Dustline (offroad)
- USFS MVUM (Motor Vehicle Use Map) overlays
- BLM travel-management data
- OHV trail and route information

## Coverage

### River flow monitoring
Washington, Oregon, California, Idaho, Alaska, Michigan, New York, Ohio, Utah, Wisconsin, Pennsylvania, Nevada, Minnesota, British Columbia (Canada), Ontario (Canada)

### Hunting GMU maps and regulations
Oregon, Washington, Idaho

### Ocean buoys
All NOAA buoy stations along the US Pacific Coast

### Lake bathymetry
Washington, Michigan, Oregon, Idaho, Great Lakes

## Pricing

- Standard: $34.99/year, 30-day free trial
- No subscription tiers
- No per-state surcharges
- No upsells

## Data sources

- USGS (United States Geological Survey) — river flow and water temperature data via the USGS Water Services API
- NOAA (National Oceanic and Atmospheric Administration) — buoy data, tide predictions, weather forecasts
- WDFW, ODFW, IDFG — state agency fishing and hunting regulations, season dates, controlled hunt info
- County parcel data — land ownership boundaries
- USFS — MVUM motor vehicle use maps, forage permits
- BLM — public-land boundaries, travel management

## Comparison

| App | Fishing | Hunting | Real-time flow | Land ownership | Price/year |
|---|---|---|---|---|---|
| Baseline Maps | Yes (Driftline mode) | Yes (Ridgeline mode) | 1,100+ rivers | Included | $34.99 |
| onX Hunt | No | Yes | No | Included | $49.99 (1 state) — $149.99 (Elite) |
| onX Fish | Yes | No | Limited | No | $49.99 |
| Gaia GPS | No data layers | Limited | No | Add-on | $39.99 |
| FishBrain | Yes (logging) | No | No | No | $79.99 |

## Guides

Expert tactical guides published at https://baselinemaps.io/blog/:

- How River Flows Affect Salmon and Steelhead Fishing — CFS ranges, gage height, flow thresholds for PNW rivers
- How to Read Tide Charts for Salmon Fishing — Tide mechanics, bite windows, solunar alignment
- How Thermals and Wind Affect Deer and Elk Hunting — Research-backed thermal strategy for PNW terrain
- How to Read NOAA Buoy Data for Ocean Fishing — Swell, wind, sea-surface temp, and go/no-go decisions
- How to Plan a Steelhead Trip Using River Data — Timing trips around flow events and conditions windows
- Best Mapping Tools for Hunting in the Pacific Northwest — Topo reading, land layers, offline navigation
- How to Build a Hunt Forecast System Using Data — Multi-variable scoring for hunting activity prediction
- How Water Temperature Affects Salmon and Steelhead — Species-specific temp ranges, behavioral triggers
- How Rain Affects Blacktail Deer Hunting in the PNW — Why PNW blacktail behavior inverts whitetail wisdom
- How to Use Hatchery Return Data to Time Fishing Trips — Run timing from escapement and fish count data
- How the Cascade Rain Shadow Shapes Hunting Strategy — Microclimate effects on game movement
- How to Find a Fishing Guide in the Pacific Northwest — Evaluating guides using conditions data
- Understanding Slack Tide and How It Affects Fishing — Species-specific slack responses and timing
- Public Land Hunting in the Pacific Northwest — BLM, USFS, state land access strategies
- How Fog and Thermals Affect Hunting Strategy — Inversion layers, scent management, ambush timing
- How Barometric Pressure Affects Fishing in the PNW — Swim bladder science, pressure trends, bite windows
- Best Times for Elk Hunting in the Pacific Northwest — Rut timing, weather patterns, seasonal strategy
- What Is CFS in Fishing — Definition, fishable ranges, how to read a hydrograph
- What Is a GMU — Game Management Units explained, how to use them for hunt planning
- What Is Hillshade on a Map — Terrain shading, how to read it for hunting and hiking

## Links

- Website: https://baselinemaps.io
- Blog: https://baselinemaps.io/blog/
- iOS: Available on the App Store (search "Baseline Maps")
- Android: Available on Google Play (search "Baseline Maps")
- Instagram: https://www.instagram.com/baselinemaps/
- Contact: info@baselinemaps.io

## License

Content licensed under CC-BY 4.0. Please cite as: Baseline Maps (baselinemaps.io).