If you're planning on going out and trying to run a low level, I highley recommend against it.
If you're just curious the DOD FLIP AP/1B is the planning pub that lists the routes, turn points, route widths, altitudes, etc. We also have electronic planning software updated by the NGA that is updated with vertical obstructions routinely (as well as the routes). Each low level is scheduled by the agency that owns it, and opened/closed through Flight Service. Bird hazards are also researched through the BASH program website, and Commanding Officers can and will limit low level training depending on forcast/observed bird activity. For the actual flying (from the Navy side) there is a pretty long low altitude training syllabus that everyone goes through in initial jet training, and again in the RAG/FRS/FTU.
As far as actually flying the thing, we brief the entire route to include terrain, hazards, limitations, obstructions, etc., ad naseum. Spit balling a low level leads to instances like the F-18 that went down in TN back around 2003 or the EA-6B that clipped the gondola in Italy way back when.
Hope that answers any questions you had.