> For the complete documentation index, see [llms.txt](https://help.backtrackmaps.com/backtrack-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.backtrackmaps.com/backtrack-docs/mapping/layers.md).

# Layers

### All Layers

<table data-view="cards"><thead><tr><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th><th data-hidden data-card-cover data-type="files"></th></tr></thead><tbody><tr><td><strong>Mountain View</strong></td><td>Like street view, but for mountains!</td><td><a href="/pages/XIUiWQi44pAWhi3YHPAV">/pages/XIUiWQi44pAWhi3YHPAV</a></td><td><a href="/files/3du5Nu9MDEWqQrsrbiot">/files/3du5Nu9MDEWqQrsrbiot</a></td></tr><tr><td><strong>Backcountry Ski</strong></td><td>Find your next ski tour.</td><td><a href="/pages/8IIxmOdhi827VR12E4Pu">/pages/8IIxmOdhi827VR12E4Pu</a></td><td><a href="/files/y3RN7Lv0HJCSxAtkhLIa">/files/y3RN7Lv0HJCSxAtkhLIa</a></td></tr><tr><td><strong>Slope Angle</strong></td><td>Identify avalanche prone terrain.</td><td><a href="/pages/AjDFdN11I4OgSBnUAeMi">/pages/AjDFdN11I4OgSBnUAeMi</a></td><td><a href="/files/ZMcMWm3UYS1AZ8FD731v">/files/ZMcMWm3UYS1AZ8FD731v</a></td></tr><tr><td><strong>Slope Aspect</strong></td><td></td><td><a href="/pages/POFlI2Tw6cxprgLP3IqX">/pages/POFlI2Tw6cxprgLP3IqX</a></td><td><a href="/files/086s2MvBY7sk7nCnKptl">/files/086s2MvBY7sk7nCnKptl</a></td></tr><tr><td><strong>Sun Exposure</strong></td><td>Visualize which slopes receive sunlight and which slopes are in the shade.</td><td><a href="/pages/adzAXt1n2FlW3jtx3aaI">/pages/adzAXt1n2FlW3jtx3aaI</a></td><td><a href="/files/Q98217Qu1NsnVaLekLBG">/files/Q98217Qu1NsnVaLekLBG</a></td></tr><tr><td><strong>Avalanche Accidents</strong></td><td>Markers where avalanche fatalities have occurred in the past.</td><td><a href="/pages/678mfrHvcOp9FHkRZrsu">/pages/678mfrHvcOp9FHkRZrsu</a></td><td><a href="/files/O3DwFCIci7oxdm9DwuJ1">/files/O3DwFCIci7oxdm9DwuJ1</a></td></tr><tr><td><strong>Avalanche Observations</strong></td><td>Observations submitted to avalanche centers across the US.</td><td><a href="/pages/uG59iiG5Ii5fOR20cNe3">/pages/uG59iiG5Ii5fOR20cNe3</a></td><td><a href="/files/kbBodUHZJONC6uLI6qrZ">/files/kbBodUHZJONC6uLI6qrZ</a></td></tr><tr><td><strong>Avalanche Forecast</strong></td><td>Daily avalanche forecasts from avalanche centers across the US.</td><td><a href="/pages/l6NBwidk01L6qzTROePV">/pages/l6NBwidk01L6qzTROePV</a></td><td><a href="/files/poNbV0zzCFCsmWS9V7pG">/files/poNbV0zzCFCsmWS9V7pG</a></td></tr><tr><td><strong>SNOTEL</strong></td><td>Daily readings from over 800 SNOTEL weather stations</td><td><a href="/pages/ZGTpBDenDn8Upc3b1AEM">/pages/ZGTpBDenDn8Upc3b1AEM</a></td><td><a href="/files/Jw9BgdynHStyhamEPEG6">/files/Jw9BgdynHStyhamEPEG6</a></td></tr><tr><td><strong>Hillshade</strong></td><td>Custom shaded relief.</td><td><a href="/pages/PCmXEAtr8dRGawBPwbKj">/pages/PCmXEAtr8dRGawBPwbKj</a></td><td><a href="/files/u5iyr4lI29nWiIIcmYSN">/files/u5iyr4lI29nWiIIcmYSN</a></td></tr><tr><td><strong>Cell Phone Coverage</strong></td><td>Verizon, AT&#x26;T, T-Mobile</td><td><a href="/pages/oExvyGs8FWgeROb2VD5B">/pages/oExvyGs8FWgeROb2VD5B</a></td><td><a href="/files/d8jlxcKrYUxdBQ8RBUOO">/files/d8jlxcKrYUxdBQ8RBUOO</a></td></tr><tr><td><strong>Public Lands</strong></td><td>Public land designations for the US.</td><td><a href="/pages/Xp8otzq79BMEwCxM7eIT">/pages/Xp8otzq79BMEwCxM7eIT</a></td><td><a href="/files/du9vVbO4vIKxZ1HLxBJO">/files/du9vVbO4vIKxZ1HLxBJO</a></td></tr><tr><td><strong>Marine Charts</strong></td><td>Nautical charts from NOAA for the US.</td><td><a href="/pages/mc25kDVgwSIHzrPwz1ia">/pages/mc25kDVgwSIHzrPwz1ia</a></td><td><a href="/files/4mgoibkKqzvBMh6hRXP8">/files/4mgoibkKqzvBMh6hRXP8</a></td></tr><tr><td><strong>Image Overlay</strong></td><td>Upload an image to overlay it on the map.</td><td><a href="/pages/NlgofrKISJ6Wne2QLMYP">/pages/NlgofrKISJ6Wne2QLMYP</a></td><td><a href="/files/tSEcIk0OBCnGwNX50jf2">/files/tSEcIk0OBCnGwNX50jf2</a></td></tr></tbody></table>