The country south of the Merced drainage system was popular, both with the Miwok and the Chukchansi, a group of the Yokuts Indians. Kroeber (1925, pp. 446, 481-482, 526) has recorded the distribution of ancient Miwok villages on the South Fork of the Merced, on Mariposa Creek, and on the Chowchilla and Fresno rivers. The primitive trails which connected these villages provided a network of lanes through the hills well known to J. D. Savage and his contemporary forty-niners who frequented the hills and stream courses north of the San Joaquin River. These Indian trails became the first routes followed by the miner and his pack outfits. A few were “improved” by their first white users to become fairly good horse trails and later some of them were transformed into wagon roads. Today the old routes are not easily distinguished from the more recent logging roads which lace back and forth everywhere through the pine country south of the park, but the investigative motorist who will check against the maps made prior to the period of logging at the turn of the century may identify the old routes and follow them in exploring the country surrounding Wawona, Mariposa, Miami, Nipinnawasee, Hites Cove, Fish Camp, Bear Valley, Hornitos, and several other historic and prehistoric sites in the Mariposa region. The Chukchansi, northernmost of the Yokuts, occupied the country south of the Fresno River and at times crossed that stream and overlapped upon the lands of the Miwok. Prior to the Yosemite Indian War with the whites, 1850-1852, they seem to have been on friendly terms with the Miwok. Chukchansi villages close to the border of Miwok territory existed at Fresno Flats (near the present Oakhurst, Madera County), Coarse Gold, Magnet, and on the San Joaquin near Hutchins. As was true of the Miwok villages, primitive trails connected these rancherias and extended into the country of the Chukaimina on the south and into the Mono territory to the east. In this part of the Sierra, the Monos claimed a goodly part of the west slope, including the present Bass Lake region and the higher country drained by the San Joaquin and Kings rivers. At the time of the Yosemite Indian War, these west-slope Piutes (Monos) were allied with the Chowchillas and Chukchansi. The intricate trail system of the densely populated belts, characterized by the Digger pine (Upper Sonoran Zone) and the oaks and ponderosa pine (Transition Zone), fed westward into major routes to the great San Joaquin Valley and eastward to high passes on the crest of the Sierra. Of these last-mentioned routes, those across Sonora Pass, Bond Pass, Buckeye Pass, Bloody Canyon, Agnew Pass, Mammoth Pass, Mono Pass (headwaters of the South Fork of the San Joaquin River), Pine Creek Pass, and Piute Pass were especially important to the Indians of the Yosemite region. At least some of these passes were traversed by horses before the advent of the white man.