# Exploring USGS Terrain Data in COG format using hvPlot

**URL:** <https://discourse.holoviz.org/t/exploring-usgs-terrain-data-in-cog-format-using-hvplot/1727>\
**Category:** Showcase\
**Created:** [January 15, 2021, 11:46am UTC](https://discourse.holoviz.org/t/exploring-usgs-terrain-data-in-cog-format-using-hvplot/1727 "2021-01-15T11:46:27Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![rsignell](https://discourse.holoviz.org/user_avatar/discourse.holoviz.org/rsignell/32/5855_2.png) [@rsignell](https://discourse.holoviz.org/u/rsignell)\
**Post date:** [January 15, 2021, 11:46am UTC](https://discourse.holoviz.org/t/exploring-usgs-terrain-data-in-cog-format-using-hvplot/1727/1 "2021-01-15T11:46:27Z")

</div>

Here’s a [simple notebook using hvPlot](https://nbviewer.jupyter.org/gist/rsignell-usgs/9657896371bb4f38437505146555264c) that demonstrates how to explore the USGS Terrain Data in COG format, available in a public AWS Bucket. The resolution is 1 arc second, or about 30m, and the data are stored in 1x1 degree squares that cover the US.

 ![2021-01-15_6-39-07](https://discourse.holoviz.org/uploads/default/original/2X/2/213e9370b86ad9a723e162ef6fff6aeffee84825.jpeg)