March steelhead come in two flavors: wild native fish and hatchery steelhead bred from native stock. Both flavors can be found in the first nine miles of river, up to Kalama Falls. Above Kalama Falls, only wild native steelhead will be present. There should be fishable numbers of them in the upper river in March.
Use traditional tactics. Indicator tactics with Egg Flies and similar patterns are also effective.
The Kalama doesn't have a river gage, but you can use the gage for the East Fork of the Lewis River to get a general idea of what's happening on the Kalama.
Another spring thrill is early summer steelhead. There's no hotter steelhead, anytime, anywhere, and a few show up in late March. More will arrive in April.
The river sees a push of spring chinook as early as the beginning of March. The chinook are difficult to target on a fly, but they can give you a big tug if you hook one while you're steelheading.
For more on March tactics and flies, see the Rivers in General forecast