This series of caches are part of the historical Henness Pass Emigrant Trail. The Trails West Inc., a nonprofit group of historians and trail enthusiasts, have marked 22 locations along the earliest trail, from Reno to Marysville. This is # 21 of 22. I will be working on the rest of the series over time, although if anyone else wants to get in on the action, let me know.
Henness pass Marker # 21.