Maps--can't trust them either!

[Ikan Mas]

Found something interesting in my mother's possession the other day when I had to make an emergency run up to Oregon. She had a circa 1950's AAA map of the sierras that was made for people wishing to access what was then, the back country. Not looking too closely at it initially, I took a highlighter and noted the treks that my brother and had taken to North Yosemite and the Minarets. Then I noticed a couple of things that currently don't exist. 1) A lodge at Gem Lake, and 2) a trail from what is currently the Rush Creek TH directly to Alger Lakes. Does anyone know where the lodge was? Is there still remnents or a use trail up Alger Creek. I'll have to make a copy of that map for further exploration.