TopoMiller
🌊 Underwater Terrain Data
TopoMiller supports underwater terrain (bathymetry) for both lakes and oceans worldwide, allowing you to create stunning 3D carvings that include realistic underwater topography.
How it works: When you select a region that contains underwater terrain, TopoMiller automatically detects and includes it in your 3D preview and STL export. You'll see a 🌊 indicator showing what underwater features were detected.
What is Bathymetry?
Bathymetry is the study and mapping of underwater terrain. Just like topographic maps show the elevation of land above sea level, bathymetric maps show the depth of water bodies like lakes, rivers, and oceans.
- Depths are shown as elevation: Deeper areas are carved lower in your 3D model
- Realistic lake beds: See underwater ridges, trenches, and slopes
- Combined with terrain: Seamlessly merged with surrounding land elevation
Data Sources
🌊 Ocean Bathymetry
Ocean floor data comes from SRTM15+ V2.5.5, a high-quality global bathymetry dataset that integrates over 33.6 million multibeam and singlebeam measurements.
- Global coverage: All oceans and seas worldwide, including Hawaii
- Resolution: ~450 meters (15 arc-seconds)
- Depth range: Surface to -11,000m (Mariana Trench)
- Features: Continental shelves, ocean ridges, trenches, seamounts
Data source: SRTM15+ via OpenTopography
🏞️ Lake Bathymetry
Lake depth data comes from multiple sources. Click each source to learn more:
The Global Lake Bathymetry Database aggregates surveyed lake depth data from:
- USGS (U.S. Geological Survey)
- State environmental agencies
- University research programs
- International hydrographic surveys
Source: Bathybase.org
Available Lakes (5,242)
| Lake Name | Max Depth | Mean Depth | Location |
|---|---|---|---|
| A-D Reservoir | 5.5 m | 0.4 m | View in TopoMiller |
| Aaron | 4.6 m | 1.0 m | View in TopoMiller |
| Abandoned Lake | 6.1 m | 0.8 m | View in TopoMiller |
| Abbie | 4.6 m | 0.6 m | View in TopoMiller |
| Abbot Lake | 7.9 m | 1.8 m | View in TopoMiller |
| Achman | 25.0 m | 6.6 m | View in TopoMiller |
| Achman | 7.6 m | 0.9 m | View in TopoMiller |
| Ackerman Lake | 13.5 m | 8.9 m | View in TopoMiller |
| Ackley Lake | 11.9 m | 3.5 m | View in TopoMiller |
| Acorn | 54.9 m | 18.8 m | View in TopoMiller |
| Acorn | 15.2 m | 1.4 m | View in TopoMiller |
| Acton Lake | 9.0 m | 1.6 m | View in TopoMiller |
| Ada | 60.0 m | 21.1 m | View in TopoMiller |
| Ada | 18.3 m | 2.1 m | View in TopoMiller |
| Adams | 12.2 m | 1.0 m | View in TopoMiller |
| Adams Lake | 4.6 m | 3.6 m | View in TopoMiller |
| Adley | 4.6 m | 0.3 m | View in TopoMiller |
| Adney | 7.6 m | 1.9 m | View in TopoMiller |
| Aeneas Lake | 1.8 m | 0.3 m | View in TopoMiller |
| Aeneas Lake | 18.3 m | N/A m | View in TopoMiller |
| Aerie | 37.0 m | 11.9 m | View in TopoMiller |
| Aerie | 10.7 m | 1.1 m | View in TopoMiller |
| Aero Lake, Lower | 54.9 m | 4.2 m | View in TopoMiller |
| Aero Lake, Upper | 53.3 m | 11.9 m | View in TopoMiller |
| Agate | 3.0 m | 0.5 m | View in TopoMiller |
| Agnes | 31.0 m | 16.2 m | View in TopoMiller |
| Agnes | 9.1 m | 2.4 m | View in TopoMiller |
| Ahsub | 78.0 m | 27.5 m | View in TopoMiller |
| Ahsub | 21.3 m | 2.2 m | View in TopoMiller |
| Albert | 12.2 m | 1.7 m | View in TopoMiller |
| Albert | 1.5 m | 0.4 m | View in TopoMiller |
| Albert Lea | 1.2 m | 0.1 m | View in TopoMiller |
| Albia (lower) | 11.0 m | N/A m | View in TopoMiller |
| Albia City Reservoir | 5.5 m | N/A m | View in TopoMiller |
| Albino Lake | 41.1 m | 4.8 m | View in TopoMiller |
| Albion | 2.7 m | 0.7 m | View in TopoMiller |
| Alder | 70.0 m | 28.7 m | View in TopoMiller |
| Alder | 21.3 m | 2.1 m | View in TopoMiller |
| Alderman Lake | 6.6 m | 3.5 m | View in TopoMiller |
| Alexander | 65.0 m | 25.2 m | View in TopoMiller |
| Alexander | 18.3 m | 2.4 m | View in TopoMiller |
| Alice | 60.0 m | 27.8 m | View in TopoMiller |
| Alice | 18.3 m | 3.5 m | View in TopoMiller |
| Alice | 15.2 m | 1.7 m | View in TopoMiller |
| Alkali Lake | 3.7 m | N/A m | View in TopoMiller |
| Allen | 41.8 m | 16.4 m | View in TopoMiller |
| Allen | 12.2 m | 1.7 m | View in TopoMiller |
| Allie | 10.0 m | 7.6 m | View in TopoMiller |
| Allie | 3.0 m | 0.9 m | View in TopoMiller |
| Alma Lake | 3.0 m | 1.9 m | View in TopoMiller |
| Alott | 10.7 m | 0.8 m | View in TopoMiller |
| Alp Lake | 6.1 m | 1.4 m | View in TopoMiller |
| Alpha Lake | 1.8 m | 0.3 m | View in TopoMiller |
| Alpha Lake, Unnamed | 4.3 m | 0.9 m | View in TopoMiller |
| Alpine Lake | 6.1 m | 0.7 m | View in TopoMiller |
| Alta Lake | 22.9 m | N/A m | View in TopoMiller |
| Alton | 72.0 m | 22.6 m | View in TopoMiller |
| Alton | 21.3 m | 1.6 m | View in TopoMiller |
| Alton Roadside Park Pond | 4.3 m | N/A m | View in TopoMiller |
| Altoona Lake | 6.1 m | 2.8 m | View in TopoMiller |
| Alum Creek Lake | 18.3 m | 2.7 m | View in TopoMiller |
| Amacoy Lake | 6.1 m | 3.7 m | View in TopoMiller |
| Amber | 27.0 m | 12.2 m | View in TopoMiller |
| Amber | 16.5 m | 12.1 m | View in TopoMiller |
| Amber | 7.6 m | 1.0 m | View in TopoMiller |
| Amber | 4.6 m | 1.8 m | View in TopoMiller |
| Ambrose Lake | 3.0 m | 2.5 m | View in TopoMiller |
| Amelia | 68.1 m | 23.1 m | View in TopoMiller |
| Amelia | 18.3 m | 2.4 m | View in TopoMiller |
| American Lake | 27.4 m | N/A m | View in TopoMiller |
| Amick Reservoir | 7.3 m | 2.8 m | View in TopoMiller |
| Anchor Lake | 27.4 m | 2.9 m | View in TopoMiller |
| Anderson | 30.5 m | 1.2 m | View in TopoMiller |
| Anderson Lake | 7.6 m | N/A m | View in TopoMiller |
| Andrew | 80.0 m | 28.3 m | View in TopoMiller |
| Andrew | 26.0 m | 16.3 m | View in TopoMiller |
| Andrew | 24.4 m | 3.3 m | View in TopoMiller |
| Andrew | 7.6 m | 1.9 m | View in TopoMiller |
| Andrusia | 55.0 m | 23.7 m | View in TopoMiller |
| Andrusia | 16.8 m | 2.6 m | View in TopoMiller |
| Angle Lake | 15.8 m | N/A m | View in TopoMiller |
| Angus | 1.8 m | 0.6 m | View in TopoMiller |
| Ankeny Lake (DMACC) | 4.9 m | N/A m | View in TopoMiller |
| Ann | 42.0 m | 17.2 m | View in TopoMiller |
| Ann | 17.0 m | 6.5 m | View in TopoMiller |
| Ann | 14.0 m | 10.4 m | View in TopoMiller |
| Ann | 25.0 m | 6.8 m | View in TopoMiller |
| Ann | 18.5 m | 10.1 m | View in TopoMiller |
| Ann | 12.2 m | 2.7 m | View in TopoMiller |
| Ann | 11.0 m | 1.2 m | View in TopoMiller |
| Ann | 4.6 m | 0.2 m | View in TopoMiller |
| Ann | 3.0 m | 1.2 m | View in TopoMiller |
| Ann | 7.6 m | 0.4 m | View in TopoMiller |
| Ann | 4.6 m | 1.1 m | View in TopoMiller |
| Anna | 7.6 m | 1.0 m | View in TopoMiller |
| Anna | 7.6 m | 0.6 m | View in TopoMiller |
| Annie Battle | 50.9 m | 14.7 m | View in TopoMiller |
| Annie Battle | 15.2 m | 2.2 m | View in TopoMiller |
| Antler | 24.4 m | 2.4 m | View in TopoMiller |
| Antrim Lake | 9.1 m | 3.7 m | View in TopoMiller |
How to Use
- Select a region on the map that includes a lake or coastal/ocean area
- TopoMiller will automatically detect underwater terrain and show a 🌊 indicator
- Click "Generate 3D Preview" to see the combined land and underwater terrain
- Export your STL with underwater features automatically included!
Underwater terrain is always included when detected - no toggle needed.
Featured Underwater Terrain
🏞️ Lakes
Crater Lake, Oregon
Max Depth: 591.9m | USA's deepest lake
Lake Tahoe, California/Nevada
Max Depth: 499.0m | Crystal-clear alpine lake
Lake Superior
World's largest freshwater lake by surface area
Lake Michigan
One of the five Great Lakes of North America
Flathead Lake, Montana
Max Depth: 115.8m | Largest natural freshwater lake west of the Mississippi
Tally Lake, Montana
Max Depth: 137.2m | Montana's deepest lake
Lake Minnetonka, Minnesota
Max Depth: 30.5m | Popular Minneapolis-area lake
Mille Lacs Lake, Minnesota
Max Depth: 12.2m | One of Minnesota's largest lakes
Lake Mendota, Wisconsin
Max Depth: 24.4m | Madison's largest lake, NTL-LTER research site
🌊 Ocean Features
Monterey Bay Canyon
Depth: ~3,600m | Underwater Grand Canyon off California coast
Hawaiian Islands
Volcanic seamounts rising from the Pacific floor
Puerto Rico Trench
Depth: ~8,380m | Deepest point in the Atlantic Ocean
Great Barrier Reef
World's largest coral reef system with complex seafloor
Note: Lake bathymetry requires surveyed depth data - if a lake isn't in our database, it will appear as flat terrain. Ocean bathymetry is available globally at ~500m resolution, which captures large features like continental shelves and trenches but may not show fine underwater details.