I found this map of Patapsco online. It is very accurate and I recommend bringing one to anyone playing there for the first time. I did my first time (printed in color and then “laminated” with scotch tape). Ended up playing with a couple other guys who had been there at least 3 times before. Turns out they needed a map, too! There were 2 holes they didn’t even know existed. “Guess we’ve only been playing 16 holes here.”