The main thing to consider is who is going to be using the map. If just you then do it however you like but if it is meant for others then legibility is the main thing. The next thing to consider is what information is important? If a certain river is mentioned then put it in, if he talks about a certain tree then show where that is. If you want it to look like an atlas then you have to put in everything because those are made to show everything because they don't know what each individual is looking for...I like to look for campsites but others just want to know where the airports are. That much info is probably overkill for this but you'll want to put in as much as is necessary...if certain places are not mentioned then don't bother with em.