The Haliwa-Saponi Indian Tribe will celebrate its 59th Annual Blooming of the Dogwood Powwow April 19-21 on the Tribal Powwow Grounds, located at 130 Haliwa-Saponi Trail, Hollister.The Haliwa-Saponi Indian Tribe will celebrate its 59th Annual Blooming of the Dogwood Powwow April 19-21 on the Tribal Powwow Grounds, located at 130 Haliwa-Saponi Trail, Hollister.