I visited this area on July 1/2 2013. Although the trail is called Salt Creek and I camped next to Salt Creek, the hike is mostly next to Cascade Creek, which Salt Creek flows into. The fire was named after Cascade Creek despite starting farther south. But it makes a fitting start to my 2013 survey of the fire terrain.
The upper parts of this hike had widespread but low intensity burn. This means that a fast-moving fire burned ground-cover but did not burn entire trees or the crown.
You can see this low-intensity affect here. The trees still have green foliage. I think that the burned trees on the ground were already down.
A heat wave had been going on and combined with all the ash (I assume) and the snowmelt, Salt Creek was not a very inviting drink on a hot day. It did clear up a fair bit by morning.
Camp. It didn't get much below 60 at night.
The maintained trail ends before you reach Salt Creek and you must go cross-country. The trail used to be visible here, but no more.
There are three small bridges just beyond the marsh area, and all survived