During the summer, I've seen boats put in at a rough launch at the cable hole; this is the drift just below Reiter. It's a pretty steep drop for your boat, but gets you into the water the next hole down. Access is via Reiter Road and the big gravel pit on your right. They've recently done a lot of work down there (last I looked some paving) so I don't know what present access is like. I would suggest making inquiries to folks that have actually launched there recently.

Not many drift boats put in above Reiter, and it wouldn't do you much good going after winter hatchery fish. The winter hatch brats don't move very far upstream of the hatchery, although the summer fish wander all over the place. Good Luck.