Municipal flag of <b><a href="https://en.wikipedia.org/wiki/Kry%C5%A1tofovo_%C3%9Adol%C3%AD" class="extiw" title="en:Kryštofovo Údolí">Kryštofovo Údolí</a></b> village, Liberec District, <a href="//commons.wikimedia.org/wiki/Czech_Republic" class="mw-redirect" title="Czech Republic">Czech Republic</a>.
Unknown author<span style="display: none;">Unknown author</span>
Flag granted to the municipality 31/V/2005
<a rel="nofollow" class="external text" href="http://rekos.psp.cz/detail-symbolu/id/6f085d0a-76be-4da5-bf83-d86b6f90f6fb">REKOS - official database of municipal symbols at website of Chamber of Deputies</a>