SCB _Sierra Club Bulletin_, 1893 to date. USNPS _Annual Report_, United States National Park Service. USWD _Annual Report of the Chief of Engineers_, United States War Department. YNP _Report of the Acting Superintendent_, 1892-1914, Yosemite National Park. YNHA _Yosemite Nature Notes_, Yosemite Natural History Association, 1922 to date. YVC _Biennial Report_, Yosemite Valley Commissioners, 1867-1904. _CHRONOLOGY, WITH SOURCES_ 1776 Garces entered Tulare Valley and named the interior range “Sierra de San Marcos.” Bancroft, 1884, p. 291; Farquhar, 1928, p. 56. Name “Sierra Nevada” applied to mountains that now carry the name, by Padre Pedro Font. Font, map; Farquhar, 1928, p. 55. 1806 Moraga Expedition explored lower course of Merced River and gave it the name “Merced.” Richman, p. 465; Farquhar, 1928, p. 58. 1826 Jedediah Smith brought first party of trappers from the East. Crossed near Cajon Pass in November. Dale, p. 183; Merriam, 1923, p. 228. 1833 J. R. Walker crossed present Yosemite National Park with a party of trappers. Leonard, Z., p. 174; Bancroft, 1885, p. 390; Farquhar, 1942, pp. 35-49; Watson, P. 57. 1841 Bartleson party was first of immigrants. Crossed Sonora Pass and probably saw Calaveras Grove. Bidwell; Bancroft, 1886, p. 268. 1844 First wagons brought across the Sierra by Stephens-Townsend-Murphy party. Bancroft, 1886, p. 445. 1847 J. B. Alvarado conveyed “Mariposa Grant” to J. C. Frémont for $3,000. California Supreme Court. 1848 Sierra gold discovery. Tinkham, p. 59. 1850 Rush to “Southern Mines” (Mariposa region). Bunnell, p. 315. Tuolumne County organized. Coy, 1923, p. 288. Mariposa County established. Coy, 1923, p. 161. Joseph Screech discovered Hetch Hetchy Valley. Hoffmann, p. 370. J. D. Savage forced to abandon trading station at mouth of South Fork of Merced. Bunnell, p. 15. Indians attack Savage’s Fresno River store and his Mariposa Creek Station, Dec. Bunnell, pp. 22, 23. 1851 Organization of Mariposa Battalion under J. D. Savage. Bunnell, p. 29. Battalion marched toward mountain stronghold of Indians, March 19. Elliott, p. 179 Chief Tenaya and a part of Yosemite tribe surrendered to advancing whites, March 25. Marvin; Bunnell, p. 52. Battalion viewed Yosemite Valley from Inspiration Point, March 25. Name “Yosemite Valley” applied. Bunnell, pp. 53, 61.