A little history:
There are actually two sets of concrete stairs in there. There was a narrow set of concrete stairs built many years ago upon which the wooden stairs rested when they were constructed (sometime in the '70's if I remember correctly.) The wooden set was built of heavily creosoted timbers and would probably have lasted fifty years if it weren't for the fire in Oct. of 1991. That creosote must have fueled a spectacular flare-up when the forest fire got to them!
Anyway, the re-build started in 1995 and was nearly complete when a major rainstorm began the destruction process in late Nov. of '95. Even worse rainstorms in Feb. of '96 made it worse and it's been abandoned ever since. The fire was a very hot one and it burned out the vegetation holding a lot of soil and rocks in place and the area has been a mess ever since. Here's a copy of an Oregonian report about the fire from Oct. 12th, 1991:

Here are a couple of photos I took on Oct. 19th, 1991.
Here is a view looking at the first teir and only remaining section of the wooden stairs. You can see the huge amount of rock and earth that slid down and covered much of the remains as the fire burned out the trees, brush and even roots holding them in place on the steep slope.

Here's a close-up:

This view is looking downwards along the alignment of the third teir of the stairs:

Here's a blow-up that shows a few steps of the original concrete stairs the wooden stairs rested on:

- Don
"If I had known I was going to live this long I'd have taken better care of myself" - anon