# sampleTerrainMostDetailed problem

**URL:** <https://community.cesium.com/t/sampleterrainmostdetailed-problem/7647>\
**Category:** CesiumJS\
**Created:** [November 1, 2018, 2:18pm UTC](https://community.cesium.com/t/sampleterrainmostdetailed-problem/7647 "2018-11-01T14:18:56Z")\
**Posts on this page:** 1\
**Showing post:** 7

<div class="post-metadata">

**Author:** ![omar](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/omar/32/1999_2.png) [@omar](https://community.cesium.com/u/omar)\
**Post date:** [November 13, 2018, 7:59pm UTC](https://community.cesium.com/t/sampleterrainmostdetailed-problem/7647/7 "2018-11-13T19:59:41Z")

</div>

The link works for me. It’s a pretty short JSON so I posted it below:

```auto
{
  "tilejson": "2.1.0",
  "format": "heightmap-1.0",
  "version": "1.1.0",
  "scheme": "tms",
  "tiles": ["{z}/{x}/{y}.terrain?v={version}"],
  "attribution": "© Commonwealth of Australia (Geoscience Australia) 2014, Data: SIO, NOAA, U.S. Navy, NGA, GEBCO, Geoscience Australia",
  "projection": "EPSG:4326",
  "bounds": [-180.0,-90.0,180.0,90.0],
  "available": [[{"startX":0,"startY":0,"endX":1,"endY":0}],[{"startX":0,"startY":0,"endX":3,"endY":1}],[{"startX":0,"startY":0,"endX":7,"endY":3}],[{"startX":0,"startY":0,"endX":15,"endY":7}],[{"startX":0,"startY":0,"endX":31,"endY":15}],[{"startX":0,"startY":0,"endX":63,"endY":31}],[{"startX":0,"startY":0,"endX":127,"endY":63}],[{"startX":0,"startY":0,"endX":255,"endY":127}],[{"startX":0,"startY":0,"endX":511,"endY":255}],[{"startX":0,"startY":0,"endX":1023,"endY":511}],[{"startX":1666,"startY":261,"endX":1900,"endY":455}],[{"startX":3333,"startY":523,"endX":3800,"endY":910}],[{"startX":6667,"startY":1046,"endX":7600,"endY":1820}],[{"startX":13334,"startY":2093,"endX":15200,"endY":3640}]]
}

```

``

You can also look at the CesiumTerrainProvider source to see what it’s doing with the availability and all that:

[https://github.com/AnalyticalGraphicsInc/cesium/blob/master/Source/Core/CesiumTerrainProvider.js#L267-L276](https://github.com/AnalyticalGraphicsInc/cesium/blob/master/Source/Core/CesiumTerrainProvider.js#L267-L276)

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