<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="http://mrdata.usgs.gov/magnetic/digitized.xsl"?><survey record-id="191" survey-id="MT0085a" survey-number="0085a" states="MT" type="M-Dz" name="Boulder Batholith" flown-by="USGS" date-flown="08/53-11/53" line-spacing="2 miles" direction="E-W" altitude="10,500 B" line-miles="3090.00000" magnetic-datum="Total field, arbitrary datum" download="/geophysics3/MT/mt0085a.txt" metadata="http://pubs.usgs.gov/of/1999/ofr-99-0557/html/mag_home.htm" preview="/geophysics3/MT/mt0085a.jpg" preview-width="1118" preview-height="940" points="8737"><reference pubid="gp538" sername="Geophysical Investigation Map" issue="538" pubdate="1965" title="Aeromagnetic map of the Boulder batholith area, southwestern Montana" origin="Johnson, R. W., Jr.; Henderson, J. R.; Tyson, N. S." publish="USGS"/><area code="f30001" name="Beaverhead" parent="fUS30" pname="Montana" scope="county"/><area code="f30007" name="Broadwater" parent="fUS30" pname="Montana" scope="county"/><area code="f30023" name="Deer Lodge" parent="fUS30" pname="Montana" scope="county"/><area code="f30031" name="Gallatin" parent="fUS30" pname="Montana" scope="county"/><area code="f30039" name="Granite" parent="fUS30" pname="Montana" scope="county"/><area code="f30043" name="Jefferson" parent="fUS30" pname="Montana" scope="county"/><area code="f30049" name="Lewis and Clark" parent="fUS30" pname="Montana" scope="county"/><area code="f30057" name="Madison" parent="fUS30" pname="Montana" scope="county"/><area code="f30059" name="Meagher" parent="fUS30" pname="Montana" scope="county"/><area code="f30077" name="Powell" parent="fUS30" pname="Montana" scope="county"/><area code="f30093" name="Silver Bow" parent="fUS30" pname="Montana" scope="county"/><area code="fUS30" name="Montana" parent="fUS" pname="United States" scope="state"/></survey>
