Boundary before war (colored areas) and after the War of the Pacific (1879-1883) (black and red lines) 
<div class="legend" style="direction:ltr;line-height:23px;"><div class="legend-content" style="display:inline-block;vertical-align:top;box-sizing:border-box;width:34px;height:23px;overflow:hidden;font-size:15px;border:thin solid #333;background:rgb(255,153,85);color:#202122;text-align:center;"> </div> Peruvian territories before the war</div>
<div class="legend" style="direction:ltr;line-height:23px;"><div class="legend-content" style="display:inline-block;vertical-align:top;box-sizing:border-box;width:34px;height:23px;overflow:hidden;font-size:15px;border:thin solid #333;background:rgb(255,212,42);color:#202122;text-align:center;"> </div> Bolivian territories before the war</div>
<div class="legend" style="direction:ltr;line-height:23px;"><div class="legend-content" style="display:inline-block;vertical-align:top;box-sizing:border-box;width:34px;height:23px;overflow:hidden;font-size:15px;border:thin solid #333;background:rgb(0,128,128);color:#202122;text-align:center;"> </div> Chilean territories before the war</div>
<p>Peru-Bolivia Boundary in Atacama Desert according to <a href="//commons.wikimedia.org/wiki/File:Departamento_moquegua_1865.JPG" title="File:Departamento moquegua 1865.JPG">File:Departamento moquegua 1865.JPG</a>
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Argentina-Bolivia Boundary in Puna de Atacama and Tarija was contested according to <a href="//commons.wikimedia.org/wiki/File:MPazSoldan.1888-2xChile.djvu" title="File:MPazSoldan.1888-2xChile.djvu">File:MPazSoldan.1888-2xChile.djvu</a>
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