REST API v1

Survey map tiles

Render US PLSS grids and Texas land survey boundaries on your map.

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Maps API

Map Tiles API

PLSS grid and Texas land survey (abstract / block / survey) overlay tiles for your mapping applications. List available layers with GET /layers.json.

Tile URL Pattern

https://maps.townshipamerica.com/{layer}/{z}/{x}/{y}.mvt?api_key=...

Layer catalog (TileJSON URLs + source-layer names):

curl "https://maps.townshipamerica.com/layers.json?api_key=YOUR_API_KEY"

MapLibre GL JS, Texas land surveys

map.addSource('texas-land-surveys', {
  type: 'vector',
  tiles: [
    'https://maps.townshipamerica.com/texas-land-surveys/{z}/{x}/{y}.mvt' +
    '?api_key=YOUR_API_KEY'
  ],
  minzoom: 4,
  maxzoom: 14
});

map.addLayer({
  id: 'texas-land-surveys-fill',
  type: 'fill',
  source: 'texas-land-surveys',
  'source-layer': 'texas-land-surveys',
  paint: {
    'fill-color': '#4a7c59',
    'fill-opacity': 0.15
  }
});

Available Layers

State	Grid Layers	Label Layers	source-layer
All PLSS States	`twpfirst-divisionsecond-division`	`twp_labelfirst_division_labelsecond_division_label`	`twpfirst-divisionsecond-division`
Texas (TXSS)	`texas-land-surveys`	`texas-land-surveys-labels`	`texas-land-surveys`

Legacy slug tx_otls still resolves to texas-land-surveys.