f="../reference/nhdplus_path.html">nhdplus_path</a></span><span class="op">(</span><span class="op">)</span>, <span class="st">"Gage"</span><span class="op">)</span></span></code></pre></div>
<p>Now we can call <code><a href="../reference/get_flowline_index.html">get_flowline_index()</a></code> on the data we just
loaded. The <code><a href="../reference/get_flowline_index.html">get_flowline_index()</a></code> function has an input,
<code>search_radius</code> which should correspond to the units of the
<code