calsfoundation@cals.org
Deep-Notch Weir
Modified Columbus deep-notch weir and approach basins under construction on West Nesbitt Creek on the Irons Fork Experimental Forest in Polk County; March 1942.
Modified Columbus deep-notch weir and approach basins under construction on West Nesbitt Creek on the Irons Fork Experimental Forest in Polk County; March 1942.