Editing California gold rush (section)

===Maps===
* [https://www.loc.gov/resource/g4361h.mf000057/?r=0.038,0.707,0.915,0.473,0 Ord, Edward Otho Cresap, Topographical sketch of the gold & quicksilver district of California, 1848.] from loc.gov accessed October 4, 2018.
* [https://www.raremaps.com/gallery/detail/45039/lawsons-map-from-actual-survey-of-the-gold-silver-quicks-lawson Lawson's Map from Actual Survey of the Gold, Silver & Quicksilver Regions of Upper California Exhibiting the Mines, Diggings, Roads, Paths, Houses, Mills, Missions &c. &c by J.T. Lawson, Esq. Cala. ... New York, 1849.] from raremaps.com accessed October 4, 2018. Lawson's map of the Gold Regions is the first map to accurately depict California's Gold Regions. Issued in January 1849, at the beginning of the California gold rush, Lawson's map was produced specifically for prospectors and miners.
* [https://www.raremaps.com/gallery/detail/44942/a-correct-map-of-the-bay-of-san-francisco-and-the-gold-regio-jarves A Correct Map of the Bay of San Francisco and the Gold Region from actual Survey June 20th. 1849 for J.J. Jarves. Embracing all the New Towns, Ranchos, Roads, Dry and Wet Diggings, with their several distances from each other, James Munroe & Co. of Boston, 1849] from raremaps.com accessed October 4, 2018. One of the earliest maps of the gold region made from personal observation, Jarves' map states on it that it was the result of a survey of the diggings made for him on June 20, 1849.
* [https://www.raremaps.com/gallery/detail/0085bm/sketch-of-general-rileys-route-through-the-mining-districts-derby-hollingsworth George Derby, Sketch of General Riley's Route Through the Mining Districts July and Aug., J. McH. Hollingsworth, New York, 1849] from raremaps.com accessed October 4, 2018.
* [https://www.raremaps.com/gallery/detail/55191/the-sacramento-valley-from-the-american-river-to-butte-creek-derby The Sacramento Valley from The American River to Butte Creek, Surveyed & Drawn by Order of Gen.l Riley ... by Lt. George H. Derby,... September & October 1849, Washington, 1849] from raremaps.com accessed October 4, 2018. Map by Lt. George H. Derby, from Tyson's Information in Relation to the Geology and Topography of California.
* [https://www.loc.gov/resource/g4361h.mf000060/?r=-0.655,0.502,2.309,0.963,0 Jackson, William A., Map of the mining district of California, Lambert & Lane's Lith., 1850.] from loc.gov accessed October 4, 2018.
* [https://www.raremaps.com/gallery/detail/43035mp2/map-of-the-gold-region-of-california-taken-from-a-recent-sur-ellis Map of the Gold Region of California taken from a recent survey By Robert H. Ellis 1850 (with early manuscript annotations), George F. Nesbitt, Lith., New York, 1850] from raremaps.com accessed October 4, 2018. A later 1850 map showing the growing settlement in the goldfields and in that vicinity of the state.
* [http://omniatlas.com/maps/northamerica/18490211/ Map of North America during the California gold rush at omniatlas.com]