I-81 North & South around mile 185
Northbound: After passing the River St. Exit and going underneath the River St and Moosic St bridges there is a rise in terrain to the left. Just beyond the hill is a turn-around where a State Trooper will sit. Sometimes he sits in an obvious place right near the highway but beware that there are tire tracks leading up the hill where they have been as well. From this vantage point they can see at least a half mile down the highway until it turns to the right.
Southbound: As the three lane part of the highway (past the Drinker street exit) makes its S-turns to the left and then right again, the hill is visible on the left directly across from the Central Scranton Expressway exit.