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<p><font face="Arial">I notice that the small polygon is a separate
park. You could delete the polygon. (or leave it as the separate
area). If the polys are to be merged, you could manually edit
the boundary (pull the vertices) so they overlap completely, and
then merge the polys.</font></p>
<img moz-do-not-send="false"
src="cid:part1.4C032F1B.BF1C3874@sover.net" alt="" width="532"
height="351">
<p><font face="Arial">If v.clean doesn't address all the problems
and there are too many, you could build the polys from lines.
If the lines are correct, the polys created from them will be
clean.</font></p>
<div class="moz-signature">David<br>
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<div class="moz-signature"><br>
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<div class="moz-cite-prefix">On 1/8/2021 3:28 PM,
<a class="moz-txt-link-abbreviated" href="mailto:qgis-user@stripfamily.net">qgis-user@stripfamily.net</a> wrote:<br>
</div>
<blockquote type="cite"
cite="mid:4c3d2a07-a561-5ee0-4334-89a3292170ff@stripfamily.net">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
This <a moz-do-not-send="true"
href="https://drive.google.com/file/d/1o1KthonUPSZGWp6QImS9btbj799Lv-om/view?usp=sharing">linked</a>
file, proclaimed.zip, is the boundary of the Santa Fe National
Forest as supplied by the USFS.<br>
If you focus on this area<br>
<img src="cid:part3.50B2D882.149EC00D@sover.net" alt="" class=""><br>
<br>
<img src="cid:part4.2C7B724A.B30EA52A@sover.net" alt="" class=""><br>
<br>
There is some problematic geometry. If I do a dissolve I get this:<br>
<br>
<img src="cid:part5.BDC57EBD.405A656F@sover.net" alt="" class=""><br>
<br>
If I remove the holes, I'm left with this bit of stray boundary:<br>
<br>
<img src="cid:part6.60CCF15D.1B16F45D@sover.net" alt="" class=""><br>
I then remove that with edit nodes. But the resulting polygon is
still not clean - if I try to use the field calculator to add the
area (using $area), I get <i>null.<br>
</i>There is bad geometry that I'm not spotting, but how do I find
it?<br>
<br>
<br>
The second <a moz-do-not-send="true"
href="https://drive.google.com/file/d/1ul60p0rSdwKcmt6zUivSMIPQHXYc_rcT/view?usp=sharing">linked
</a>file, clean.zip, is the result of the steps above.<br>
<br>
<br>
<br>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<pre class="moz-quote-pre" wrap="">_______________________________________________
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