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<div>FYI… see below.</div>
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<div>Rachel Lyles Smith, GISP</div>
<div>Project Operations Manager</div>
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<div>OR Dept. of Geology & Mineral Industries</div>
<div>800 NE Oregon St. Suite 950</div>
<div>Portland, OR 97232</div>
<div>971-673-0481 phone</div>
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<div>-----Original Message-----</div>
<div>From: David Sherrod [<a href="mailto:dsherrod@usgs.gov">mailto:dsherrod@usgs.gov</a>] </div>
<div>Sent: Thursday, July 03, 2014 2:37 PM</div>
<div>To: Deb Schueller</div>
<div>Subject: Other log alert: Historical map atlas of slick convenient access</div>
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<div>Not strictly a geology thing, but topography is landform is geology.</div>
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<div>ESRI has released a USGS Historical Topographic Map Explorer application that allows users to access historical maps as high-resolution georeferenced images for use in web mapping applications. The web display features a timeline to easily select the desired
maps.</div>
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<div><font face="Times New Roman"><a href="http://historicalmaps.arcgis.com/usgs/"><font face="Calibri" color="red"><u>http://historicalmaps.arcgis.com/usgs/</u></font></a></font></div>
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<div>You can zoom to the area of interest (double clicking or magnify tool), then mark a point by single click, which spawns a timeline showing the names, scales, and dates of publication for the topographic maps that cover your mark. A tap on any of those
anchors brings a particular map onscreen (download button present, too).</div>
<div>Multiple maps can be stacked onscreen: in my testdrive, for example, the 1901 Baker City map (1:125,000) in background, overlain by the</div>
<div>1965 Baker quad (1:24,000).</div>
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<div> This message is posted in the OR Geology Logs at : <a href="http://cvoext.wr.usgs.gov/orgeollogs/logs_read_single.php?obsid=141">http://cvoext.wr.usgs.gov/orgeollogs/logs_read_single.php?obsid=141</a></div>
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<div>To change your alert preferences, go to <a href="http://cvoext.wr.usgs.gov/orgeollogs/logs_alerts.php">http://cvoext.wr.usgs.gov/orgeollogs/logs_alerts.php</a></div>
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