In June 2006, an opportunistic high-flow release was made from Tiber Dam on the Marias River in Montana to investigate possible alternatives for partially restoring the river's natural flow pattern and variability. At two sites along the river, we measured channel geometry in 2006 before and after the high-flow release to evaluate channel change and alteration of physical habitat. Here we provide data from a resurvey of those sites, conducted in August 2007.