How to read this 250+MB .xml file

I have a huge (250MB+) xml file that I need to parse into a database. Here is an example of the file:
 

<MYmaps_Records xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  xsi:noNamespaceSchemaLocation="MYmaps.xsd">
    <MYMapRecord>
      <MYmapId>MAP1</MYmapId>
      <LabelLine1>1</LabelLine1>
      <LabelLine2>MAP</LabelLine2>
      <MinLatitude>25500000N</MinLatitude>
      <MaxLatitude>36100000N</MaxLatitude>
      <MinLongitude>074000000W</MinLongitude>
      <MaxLongitude>091000000W</MaxLongitude>
      <MYMapObjectType>
        <MapObjectType>ExtraLine</MapObjectType>
        <MYMapLine>
          <LineObjectId>ExtraLine1</LineObjectId>
          <LineObjectSeq>1</LineObjectSeq>
          <Color>White</Color>
          <LineStyle>Solid</LineStyle>
          <Thickness>1</Thickness>
          <StartLatitude>29413369N</StartLatitude>
          <StartLongitude>083000853W</StartLongitude>
          <MYTextFilters>
            <FilterGroup>8</FilterGroup>
          </MYTextFilters>
          <MYTextStrings>
            <TextLine>Extra Line 1</TextLine>
          </MYTextStrings>
        </MYMapLine>
        <MYMapLine>
          <LineObjectId>ExtraLine2</LineObjectId>
          <LineObjectSeq>2</LineObjectSeq>
          <Color>White</Color>
          <LineStyle>Solid</LineStyle>
          <Thickness>1</Thickness>
          <StartLatitude>29414120N</StartLatitude>
          <StartLongitude>083000854W</StartLongitude>
           <MYTextFilters>
            <FilterGroup>8</FilterGroup>
          </MYTextFilters>
          <MYTextStrings>
            <TextLine>Extra Line 2</TextLine>
          </MYTextStrings>
        </MYMapLine>
        <MYMapLine>
          <LineObjectId>ExtraLineX</LineObjectId>
          <LineObjectSeq>3</LineObjectSeq>
          <Color>White</Color>
          <LineStyle>Solid</LineStyle>
          <Thickness>1</Thickness>
          <StartLatitude>29414121N</StartLatitude>
          <StartLongitude>082595993W</StartLongitude>
          <EndLatitude>29413370N</EndLatitude>
          <EndLongitude>082595992W</EndLongitude>
          <MYTextFilters>
            <FilterGroup>8</FilterGroup>
          </MYTextFilters>
          <MYTextStrings>
            <TextLine>Extra Line x</TextLine>
          </MYTextStrings>
        </MYMapLine>
 
        'Thousands more MYMapLIne
 
      </MYMapObjectType>
 
      'Hundreds more MYMapObjectType
 
    </MYMapRecord>
    <MYMapRecord>
      <MYmapId>MAP2</MYmapId>
      <LabelLine1>2</LabelLine1>
      <LabelLine2>MAP</LabelLine2>
      <MinLatitude>25500000N</MinLatitude>
      <MaxLatitude>36100000N</MaxLatitude>
      <MinLongitude>074000000W</MinLongitude>
      <MaxLongitude>091000000W</MaxLongitude>
      <MYMapObjectType>
        <MapObjectType>ExtraLineAA</MapObjectType>
        <MYMapLine>
          <LineObjectId>ExtraLine1</LineObjectId>
          <LineObjectSeq>1</LineObjectSeq>
          <Color>White</Color>
          <LineStyle>Solid</LineStyle>
          <Thickness>1</Thickness>
          <StartLatitude>29413369N</StartLatitude>
          <StartLongitude>083000853W</StartLongitude>
          <MYTextFilters>
            <FilterGroup>8</FilterGroup>
          </MYTextFilters>
          <MYTextStrings>
            <TextLine>Extra Line 1</TextLine>
          </MYTextStrings>
        </MYMapLine>
        <MYMapLine>
          <LineObjectId>ExtraLine2</LineObjectId>
          <LineObjectSeq>2</LineObjectSeq>
          <Color>White</Color>
          <LineStyle>Solid</LineStyle>
          <Thickness>1</Thickness>
          <StartLatitude>29414120N</StartLatitude>
          <StartLongitude>083000854W</StartLongitude>
          <MYTextFilters>
            <FilterGroup>8</FilterGroup>
          </MYTextFilters>
          <MYTextStrings>
            <TextLine>Extra Line 1</TextLine>
          </MYTextStrings>
        </MYMapLine>
        <MYMapLine>
          <LineObjectId>ExtraLineX</LineObjectId>
          <LineObjectSeq>3</LineObjectSeq>
          <Color>White</Color>
          <LineStyle>Solid</LineStyle>
          <Thickness>1</Thickness>
          <StartLatitude>29414121N</StartLatitude>
          <StartLongitude>082595993W</StartLongitude>
          <EndLatitude>29413370N</EndLatitude>
          <EndLongitude>082595992W</EndLongitude>
          <MYTextFilters>
            <FilterGroup>8</FilterGroup>
          </MYTextFilters>
          <MYTextStrings>
            <TextLine>Extra Line 1</TextLine>
          </MYTextStrings>
        </MYMapLine>
 
        'Thousands more MYMapLIne
 
      </MYMapObjectType>
 
      'Hundreds more MYMapObjectType
 
    </MYMapRecord>
   'Many more MYMapRecord
 
</MYmaps_Records>

 

I have been trying to use xmlreader and get the element names and data but it get really combersome looking for beginning end ending tags. BTW: I have no control of the structure of the XML so I have to work with it the way it is.
 

Is there an easy way to read/parse this file?