On any new venture, you have to start where you start. You have to start feeling your way through it, especially at the beginning, because you have no clue what you need to know. So, you start looking for resources. You start building the frame for all the interior pieces of the puzzle. My first stop… the Tahoe Rim Trail Association to start doing some research. I found their page with an interactive map for the trail, plus “Detailed Trail Segment Information.”
https://tahoerimtrail.org/maps-trail-info/
With each step taken, each bit of research under my belt, the more conversant I become in the topic at hand. And, this, delightfully leads to more confidence to keep going, filling in more and more of the pieces.