Open The Salt Chuck in the studio
The studio frames the survey area, turns on Water depth and generates the terrain, ready to adjust and export as SVG layers.
Survey facts
| Location | Petersburg Borough, Alaska |
|---|---|
| Centre | 57.4494° N, 133.3319° W |
| Survey area | 1.6 km east–west × 0.94 km north–south |
| Depth data | Surveyed grid |
| Source | NOAA National Bathymetric Source: Alaska lakes. NOAA Office of Coast Survey National Bathymetric Source; survey sources licensed CC0 1.0 or CC BY 4.0. Only measured survey cells are used; modelled fill removed by TopoStack. Not for navigation. |
About 92% of the lake is surveyed. NOAA National Bathymetric Source survey cells only; modelled fill is removed and uncovered parts use the basin model. Depths are below the surveys’ chart datum (MLLW on tidal water, low-water datum on the Great Lakes), not a live water level.
Sizing a piece
Framed to the whole survey area, the map keeps its landscape shape. These are the scales at three common sizes. A tighter frame zooms in and a wider one adds shoreline, and the studio recalculates both.
| Piece size | Map scale |
|---|---|
| 305 × 176 mm (12 × 6.9 in) | about 1:5,300 |
| 406 × 235 mm (16 × 9.3 in) | about 1:4,000 |
| 610 × 353 mm (24 × 13.9 in) | about 1:2,700 |
Your sheet thickness sets the number of layers. If the lake needs more sheets than you want to cut, Fit depth compresses the lake floor and keeps the shoreline. If the piece is bigger than your laser bed, split it into interlocking pieces.
Nearby lakes with depth data
More about lake maps
- Make a custom lake depth map: the whole build, from framing to glue-up.
- How lake depths work: surveyed, charted and modelled depths, and what the studio's warnings mean.
- Paint templates for spraying only the water on each layer.
- Alaska: more lakes from the same survey.
Survey dates and water levels vary, and a survey can cover only part of a lake. Exports include an ATTRIBUTION.txt crediting the source; see sources and attribution. Depth data is decorative source material, not for navigation.