Upper Elkhorn NRD Sub-district Boundaries
Sub-District 1 (Rock Co.)
Sub-District 2 (Western Holt Co.)
Sub-District 3 (City of O’Neill)
Sub-District 4 (Southern Holt, Wheeler Co.)
Sub-District 5 (North Antelope Co.)
Sub-District 6 (Central Antelope Co.)
Sub-District 7 (Southern Antelope Co.)