WHETSTONE INTL
PORT OF DEL BONITA, MT
Whetstone International (H28) is a publicly owned, non-towered airport in Port Of Del Bonita, Montana. The sole runway, 07/25, spans 4,440 by 65 feet with a turf surface. No instrument approach procedures are published. Aircraft self-announce positions on the common traffic advisory frequency, 122.8 MHz. The field rests at 4,336 feet above mean sea level.