You will be hunting the lower river drainages. The roads going above 4000 feet are snowed out. Everything is about a month late. This could work to concentrate bears lower, but also can make it impossible to get to the open scree fields and meadows at higher altitude. The place I killed a bear at last year at the end of May, you will not be able to get into untill July. I have seen a few nice bears taken this spring, one local guy shot a 400 plus pound Chocolate that was really nice. I have only seen three so far, but have not bait hunted this spring, and the three I have seen were all small 100 pounders.
Good luck, if nothing else you will be in some neat country, and be able to find some sheds and morrells.