Thank you ecoartHull for your details. Actually it wasn't too late. We drove through last week on the way from the Alaska ferry in Bellingham, WA. You were lucky to see explosion of wildflowers. We saw some.
UPDATE: We took a drive a couple days ago through the Snowies and were able to see "our" cabin but only from a distance since it was occupied. It looks very small but we love those forest cabins and it is in a great location for hiking in the area. Maybe next year when we traveling west or if we decide to move to WY. I'm still waiting for refund from www.recreation.gov
When we drove through the park in July there were so much snow we couldn't get to the reserved forest cabin. Now there are still areas with snow but nothing compares tho what we had about 10 weeks ago. It was windy and cold I think 49 degrees which means a fresh snow will be falling soon. There were only a few visitors and we saw only one car in the trailhead where we hiked. We did not see any hikers anywhere else or cars parked in any other trailheads.
We took two shorter hikes and had some patches of wildflowers including gentian, asters, golden rods. The biggest surprise were plentifulmountain bluebells and bright yellow blooming flowers of arnica around Lake Marie.