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How to use this Map ×



Move around the map by click-dragging. Use the and icons or your mouse's scrolling wheel to zoom in and out on the map.

Watch a timeline of active mining from 1985 throuth 2015 by clicking Play Timeline. This works at any location or scrolling level.

Cities and Towns can be shown/hidden by toggling the Labels On/Off switch.

County Borders are shown by default, but can be removed by toggling the County Borders On/Off switch.

SkyTruth’s composite images combine the best satellite photos for each year into a single layer, and are available for each year from 1985 through 2015. Simply toggle the SkyTruth Composite On/Off switch, then use the Composite Year slider to select the year.

You can see a breakdown of mining -- by year and as a percentage of the total selected area -- for virtually any area.