Great find and thanks for the writeup--I've heard the flume gets rickety and partly rotted, so I'm glad you're still here to post your report and photos.
And though this location has become more well-known recently, it would still be good if you can edit your post (and Flickr) to remove the location name, or make it much more "approximate," especially since this is a public thread. E.g. saying the general region instead of the name of the nearby geographic feature. It helps keep locations around longer...cause not everyone is as interested in documentation/preservation as we are
Been enjoying your recent posts and following your Flickr...keep it up!
Edit: @TobaColwyn pointed out that my reply still keeps the old title even after the original was changed. Thanks for your heads up, in turn!