Depth maps built for fishing

Know where to fish before you launch.

Open a lake or river, choose your species, and get the structure, timing, and tactics worth trying, on a depth map that tells you whether its contours are surveyed or approximated.

Browse fishing maps See how it works
  • Every water is free to inspect without an account
  • Surveyed and approximated depth data are labeled honestly
  • Today and tomorrow include the daily score and best window
Product preview Water read
DepthScout bathymetric fishing map previewAn illustrative depth chart with a numbered prime fishing spot on a steep underwater point.110 ft20 ft30 ft40 ft
Survey depth data
Top prime spotOffshore point

Seasonal depth meets a steep break. Open the spot to see why, when, and what to throw.

Included
Top prime + good/fair
Depth data
Surveyed and approximated depth data are labeled honestly
Open a real surveyed map: Lake Tahoe
lakes and rivers mapped
40,143
built on real survey data
18,792
species covered
139
Save the full water read before you leave signal
Offline water maps

From chart to cast

A useful answer in three moves.

DepthScout turns a water, a species, and the season into a short list of places worth your time.

  1. 01

    Find the water

    Search 40,143 waters, including 489 rivers, or use the map to see what is nearby.

  2. 02

    Read the structure

    Choose your species. Every rated point, hump, ledge, and weedline explains why it fits that fish now.

  3. 03

    Fish the window

    See the best time and tactic, then use the GPS overlay or a saved offline map when you reach the water.

Built for the water

A map that tells you what to do next.

DepthScout keeps the chart, the reasoning, and the on-water tools together, without pretending modeled depth is a survey or fishing guidance is navigation.

See how the read is built

Depth map and daily read

Browse every depth map, the top prime spot, every good or fair spot, and the daily outlook for today and tomorrow.

Every water is free to inspect without an account

On-water GPS overlay

See your position on the chart, mapped depth at that position, and the range and bearing to the nearest rated spot.

Mapped chart depth at your GPS position, not a live sonar reading

Offline water maps

Save a water before launch so its chart, included spots, and fishing read remain available without signal.

Save the full water read before you leave signal
18,792 waters on real agency surveys

State fisheries GPS depth soundings, measured rather than modeled

Named government sources

State DNRs, USGS, NOAA and USACE. Every chart says which.

Honest labels on every chart

Survey data and approximated contours are never mixed up

Where every number comes from →

Free on every water

Inspect the water before you pay.

Every depth map, the top prime spot, every good or fair spot, and the daily outlook for today and tomorrow stay free.

Browse maps freeCreate a free account

DepthScout Pro

The core map read stays free. Pro is for trip day.

Pro adds every ranked spot, the seven-day hourly forecast, and more waters across alerts, the quiet-week read, and the trip planner.

  • Weekend trip planner
  • Full ranked spot read
  • 7-day hourly forecast and solunar
  • Foot access plans
Compare Free and Pro See current pricing and any eligible first-time trial before checkout.

Start with your water

The fastest proof is a real depth map.

No quiz. No account wall. Open a water and see whether the read earns your next cast.

Find my water

Featured research

The Uneven Map Beneath the Water

We audited 37,672 public waters to see where measured bathymetry is easy to find—and where modeled contours still fill the gaps.

Read the report
Sitewide coverage
38.1%
Regional catalogs
63
Snapshot
Aug. 13, 2026

From the Blog

Field notes for reading the water

View all articles

Maximum Depth Is Not Where the Fish Are

A lake's maximum depth sets the scale, but it does not reveal where most of the water—or the fish—will be. Here is how to turn that one number into a practical map-reading plan.

Straight answers

Before you open a chart.

Is DepthScout free?

Yes. Every depth map, the top prime spot, every good or fair spot, and the daily outlook for today and tomorrow stay free. Use the on-water GPS overlay on every chart with a free account. Save any water for offline use with a free account. Stocking updates and official regulation links are free too. There are no ads; nothing on the page is sold to an advertiser. Some lure suggestions link to a shop and we may earn a commission if you buy, which is disclosed next to the links; the picks themselves are chosen by the analyzer and never paid for.

What does “Survey depth data” mean?

Waters with that badge are built from real GPS depth soundings collected by state fisheries biologists, so the contours reflect measured depths. Waters labeled “Approximated contours” use modeled depth from the water's real shoreline and maximum depth: a rough guide, clearly labeled.

Which states are covered?

Ontario (7929 waters), Sweden (6433 waters), Wisconsin (4318 waters), Minnesota (3774 waters), British Columbia (2474 waters), Québec (1868 waters), Finland (1551 waters), Michigan (1406 waters), Germany (1134 waters), United Kingdom (860 waters), Norway (753 waters), Maine (648 waters), New Hampshire (490 waters), New York (367 waters), Montana (366 waters), Saskatchewan (350 waters), Lithuania (349 waters), Massachusetts (320 waters), Wyoming (320 waters), Washington (264 waters), New Brunswick (262 waters), Florida (249 waters), Indiana (214 waters), North Dakota (212 waters), Texas (193 waters), Iowa (192 waters), Ohio (176 waters), Alberta (171 waters), Connecticut (166 waters), Nebraska (141 waters), Netherlands (139 waters), California (119 waters), Missouri (115 waters), Vermont (111 waters), Oklahoma (96 waters), Alaska (94 waters), South Dakota (94 waters), Utah (93 waters), Arizona (88 waters), Colorado (86 waters), Illinois (83 waters), Nova Scotia (82 waters), New Mexico (77 waters), Kansas (73 waters), West Virginia (64 waters), Mississippi (63 waters), Idaho (62 waters), Estonia (59 waters), New Jersey (57 waters), U.S. Virgin Islands (55 waters), Kentucky (54 waters), Alabama (52 waters), Oregon (50 waters), North Carolina (50 waters), Puerto Rico (48 waters), Tennessee (48 waters), Georgia (43 waters), Delaware (39 waters), Nevada (39 waters), Virginia (39 waters), Rhode Island (38 waters), Manitoba (38 waters), Louisiana (35 waters), South Carolina (30 waters), Pennsylvania (27 waters), Maryland (26 waters), Arkansas (25 waters), Denmark (19 waters), Hawaii (17 waters), plus border waters shared with neighboring states, and more on the way.

How does it pick the spots?

It scores every mapped piece of structure against the species' seasonal depth range and what kind of cover they relate to. Every spot you open explains its score in plain English. Free includes the top prime spot and every good or fair spot; Pro opens every prime spot.

Can I use it for navigation?

No. DepthScout is for fishing guidance only. Contours, even survey-based ones, are not navigation products. Always run safe and check local regulations.

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