First off, let me say thanks for the well wishes for my' sister!
I will try to answer the questions and insight posed in the latest posts!
Tnmountains...Thanks for the advice and info. And yes, I will be hauling in my' Gold pan and Classifiers to see what might be hidden on the streambed and in the stream. We are also planning to check a sample of the powder or whatever it is in the pile of white material and also what appears to be the same that can be seen hanging onto rocks in the stream. We can only conjecture as to what both are and was hoping for input from others on ideas as to what they might be. In any case, it seems that it would have to be heavy since it is able to stay in place on some of the rocks and is not washed away immediately upon entering the stream. This material appears to possibly be in parts of the floor and stream banks or shelves as evidenced in the pics and it also appears that in viewing the pic of the other access to the cave or entrance to another cave (i.e. the one Brad has not entered due to the Bobcat tracks), whichever be the case, may have this same material inside it! In the pic, it appears to have white rocks inside but it could just be the flash of the camera. Hopefully, we will know more upon investigation.
DocBeav and diggummup...According to Brad, the spot that you circled on the ceiling in the pic, may in fact just be a cave cricket! We discussed this previously when I noticed the same in this and some other pics and had thoughts of bats.
DocBeav...The rectangular blocked area of the wall is also an area of interest to us and has been discussed. Due to the debris on the floor, my theory is that the rock wall has been honed out by hand. For what reason, we can only conjecture at this time and we are not totally certain of this at this time! We plan to investigate this spot and others very closely when we finally make it into the cave for exploring, searching and documenting our finds with camera and video. However, from my investigation of the pics, the darker greyish/brown rocks as well as the bluish rocks in the pic, appear to be just different composition type rocks with greater density than the surrounding rocks. However, I have noticed that there are areas within this rock wall that appear to have shapes and patterns that need to be checked more closely.
Thanks everyone for the keen eyes, observations and help! We definitely need input from anyone with a theory, thought, observation and advice to help us plan out the specifics of the exploration and investigation of the cave and it's many mysteries!
Frank