Several years ago, I learned, from Ray Nelson, to add (L) and (R) to help describe splits and markers. For example,
5K - On Jamaicaway, 10 ft. before Pole 67 (L), 24 yd. after fire hyrdrant (R), 3 in. before curb seam (R)
Adding left and right, along with the before and after, help orient the reader that is following the map.
Thank you. -- Justin