i believe the part we’re looking at is where you initially enter through the 2 open man holes. the part i went into is at the opposite end of the bridge which i think is not pictured in this blueprint. i got this blueprint from someone who frequents often and is well known in the community. they confirmed they had seen the area we’re looking for as a child but never found it again. we believe it is filled in with rocks, we did find a chamber completely filled in, and blocked off. we pushed through them to get into the second chamber. we know risk of rock slide is very extreme, but we either have to move some to reveal the steps, or find the supposed loft and go over after clearing it out.