I am looking at going to the NE corner of Yellowstone to fish Slough Creek (2nd Meadow) and some of the other rivers in that area (Lamar, Sodo Butte, Cache Creek). I understand that this is definitely bear country. Is it safe to day hike and fish solo as long as you are on high alert and carry bear spray? Or should it only be done on the buddy system? Is it advisable or not? Thanks.