This elann pattern will be retired at the end of February 2021 - No pattern support will be available going forward.

From the pattern:

In this shawl, a simple drop-stitch pattern based on a 1x2 rib creates a lacy look without a single yarn-over. Increases occur in the center of each panel, creating a fan (river delta) of ribs. A lace edging echoes the delta theme.