Kings is the longest river in the whole Sierra Nevada mountain range. The snowmelt starts way up in the high elevation backcountry near the tiny alpine lakes at Kearsarge Pass and the tallest peaks of Mount Whitney. The Kings River passes thru Kings Canyon National Park and spills out into the large Pine Flat Reservoir, on the westen edge of the wilderness. The river continues down to the great California Central Valley to sloughs & irrigation canals for the big agriculture crops, which feed the world.