Custom map poster generator
Mountains, coastlines, a city you lived in — pick the ground, choose a palette, and export a print-resolution poster from the same elevation grid the 3D model uses.
Topographic map posters, mountain prints and city wall art
Every poster starts from the real terrain of a place: a mountain range, a coastline, a city you lived in. The elevation grid is rendered as a topographic map with hillshade and colour bands, then composed into a print-ready poster at 300 dpi.
- Topographic map poster — contours, elevation bands and a legend for a mountain or national park.
- Mountain wall art — a single peak with dramatic relief; the Matterhorn, Rainier or Everest read beautifully.
- City map poster — a city's terrain and coastline rather than a street map, a quieter alternative to the usual city-map prints.
How to make one
- Choose the place. Pick a country, state or county from the Region panel, or draw a box around any area on Earth. The map follows the elevation data for that exact area.
- Style it. Sixteen colour ramps and eight presets cover everything from ink-line minimal to satellite and slope. Band the colours to the area or to absolute elevation.
- Add the furniture. Title and subtitle for the plate; legend, scale bar and north arrow are composed automatically. The optional title block adds the region name, coordinates, elevation range and date.
- Export at poster size. In the Export panel choose PNG and pick Poster · A3 or Poster · A2 — 300 dpi output.
Open the app and make a poster
What prints well
- Height ranges: a whole country in a 2,000 m range reads as broad bands; zoom into one valley for detail.
- Light: the light bearing changes which ridges catch the light — try two directions before printing.
- Contours: subtle at interval 250 m, graphic at 100 m; they print as fine dark bands.
- Colours: warm ramps print closer to screen than highly saturated ones; proof a small copy first.
Questions
- What resolution are the posters?
- Poster exports render at 300 dpi: A3 is 4961 px on the long edge and A2 is 7016 px. The page keeps the selected area’s aspect ratio, so a tall valley or a wide coastline both fill the sheet.
- Can I put my own title on the poster?
- Yes. Type a title and subtitle in the panel, and switch the optional title block on for region name, centre coordinates, elevation range, date and data credits.
- Which paper and sizes should I print on?
- 300 dpi inkjet or giclée on matte paper reads best; A3 fits most home printers, while A2 and larger are usually printed at a shop. The artwork’s aspect ratio matches your selection, so trim to the frame you have.
- Can I use the poster commercially?
- Yes, for editorial and commercial illustration. Boundary data requires geoBoundaries attribution and the credit line is part of the export; some jurisdictions regulate published maps, so check local rules if that applies to you.
- Is it really free?
- Yes — every size, every palette and the title block are included, with no account and no watermark beyond the attribution line.
- Where can I make a custom topographic map poster?
- Right here, free: choose a place, pick a palette, add a title block, then export Poster A3 or A2 at 300 dpi. No account and no watermark beyond the attribution line.
- What sizes are available?
- A3 (4961 px long edge) and A2 (7016 px) at 300 dpi, plus standard 2x/4x PNG if you want a different print size.