Grayback Gulch Campground Boise, Idaho (208) 392-6681 ProfileGrayback Gulch Campground. RV Park and Campground in Boise, Idaho Photos RV Campground HQ Default Reviews Map Loading... No Records Found Sorry, no records were found. Please adjust your search criteria and try again. Maps failed to load Sorry, unable to load the Maps API. Enter your locationGet Directions Travel modeDrivingWalkingBicyclingPublic Transport Distance unitsMilesKilometers Get Directions