Ridges & Valleys Stitch

Chain even number of sts. + 1

1st row: Sc in 2nd ch from hook, * tr in next ch, sc in next ch. Repeat from * across. Ch 1, turn.

2nd row: Sc in each st across. Ch 1, turn.

3rd row: Sc in first sc, tr around bar of 2nd tr on first row, skip 1 sc on row in work, sc in next sc, tr around bar of first tr on first row, * skip next sc on row in work, sc in next sc, skip next tr on first row, tr around bar of next tr, skip 1 sc, sc in next sc, tr around bar of skipped tr. Repeat from * across. Ch 1, turn.

Repeat 2nd and 3rd rows alternately until piece measures the desired length.