Tahoe: 'The Patch'

Am trying to explain to a friend how to get there (he's got some monthly ski--snowboard, actually--streak he wants to keep going)...problem is, I haven't been anywhere near there in almost 20 years. A little help? I know basically where the dirt road on the left (coming from South Lake) that leads to it is, just want to be accurate and not send him on a different road (if there is another one nearby, which I think is possible). PM me or post--this thread will self-destruct when I have good coordinates. Muchas gracias.