elbegewa

First re your flights.
You have a number of choices into Kalispel with only one stop as mentioned above by Dave S - it's a 2.5 hr drive to Many Glaciers per Google Maps. There are as many or more flights into Great Falls, which is 2 hr 51 min. from Many Glaciers (and it would give you views of the dry central Montana): Flights by United via Chicago or Denver and Delta via Minneapolis or Salt Lake City. (One of the very best places to search for flights is https://matrix.itasoftware.com/ , but you can't purchase tickets from them - its just provides info.)

Now re your trip:
I concur that Walla Walla would be a great stop midway from GNP to the Gorge - IMHO a far better choice than Dayton (they are close to each other) http://www.wallawalla.org/

By all means stop at the Maryhill Museum on the east end of the gorge on your way from Walla Walla http://www.maryhillmuseum.org/visit

While at the Gorge definitely get to Timberline Lodge - one of the most outstanding lodges built by the NRA's artisans during the depression. http://www.timberlinelodge.com/plan-...ore-the-lodge/

Some excellent sources for more info on the Gorge are http://traveloregon.com/cities-regio...a-river-gorge/ and http://www.crgva.org/

jayne1973

Definitely spend some time studying everything about Timberline Lodge, which utilized the skills of some very talented people working for the WPA program in the depression era. I don't think the NRA was involved.