These are the upper falls of the Tahquamenon River in the upper peninsula of Michigan. Above the falls, the river runs through many miles of nearly pristine wilderness, with no roads or other signs of human influence. The water in the river is about the color of tea, because of tannins leached from the soils upstream. Brown streaks are visible in parts of the falls. This is the second largest waterfall east of the Mississippi river.
The red flowers are fireweed, Epilobium angustifolium, which grows in disturbed places, including fire-ravaged areas. It apparently likes the area beside the falls, where grass is mowed to keep the falls visible.