Hunters report that Unit 186 in Grande Ronde, Washington, offers varied terrain that can pose challenges, with some areas requiring physical endurance to access prime hunting locations. The unit is noted for having a mix of public and private lands, so understanding land boundaries ahead of time is crucial. During certain seasons, game movement is influenced by weather patterns, making it beneficial to monitor conditions closely. Overall, planning and preparation are key to success, with many hunters suggesting scouting trips and utilizing maps to better understand the terrain and improve chances of a successful hunt.