Carbide dump (caplamp sized) about 100' upstream of lunch area near UL4. Very fresh, as there were chunks in the dump that still could have been put into a lamp and burned.
, we leaped frog along the stream and huge meanders mapping continuously for nearly 8 hours
Once we reached the "UL4 entrance" to the UL3 maze we stopped and set up a base area for a later hot meal. This also gave those of us changing clothes a chance to do so.
We got a late start into the cave since everyone wanted to sleep in. It was 1:10p by the time everyone was at the bottom of the entrance. We headed to the end of the main passage U survey to quickly tie it into UL3.
Continue survey of the Upper Thunder River Main-Stream Passage; continue side passage in UL3 sections off of Upper Thunder River. Trip objectives were met with teams continuing survey on two (2) consecutive days.