Tony,we did a lot of exploring to find some waters without trout in them.It is all about upstream barriers,whether the creek is marginal ie-dries up later in the season,if somebody has stocked fish at sometime above falls/barrier.Take the fact there are trout above Valentine Falls,it would be a very adventurous and determined trout to make it up them falls so I can only assume somebody has put trout in there sometime over the last 120 years or so.Perhaps the Snowy workers that stayed in the hut put some in so that they could have fresh trout for Dinner.
Half the the fun in what we do is the exploring with every now and then you find a troutless creek but sometimes you find a hidden gem
It's all about doing your homework and I wouldn't want it any other way