Finding an upstream path to the source

1. Click the tool palette drop-down arrow on the Utility Network Analyst toolbar and click a flag tool button ( or ).
2. Click to place flags at each point for which you want to find an upstream path to the source.
3. Click the Trace Task drop-down arrow and click Find Path Upstream.
4. Click the Solve button .

An upstream path from the flag to the source is displayed for each of your flags.

Tip:

By default, the Find Path Upstream trace task does not use weights. If you use weights, the upstream path found to the source is the shortest path based on the weights you specify. To specify weights, follow steps 3 through 7 for finding the upstream accumulation.