201 ► California, Kern County, Red Mountain — The Baltic Mine —

On Red Mountain Road, 0.8 miles west of U.S. 395, on the left when traveling west.

202 ► California, Kern County, Red Mountain — The Baltic Mine Project

On Red Mountain Road, 0.8 miles west of U.S. 395, on the left when traveling west. Reported permanently removed.

203 ► California, Kern County, Red Mountain — The Kelly Silver Mine —

On Red Mountain Road, 0.8 miles west of U.S. 395, on the left when traveling west.

204 ► California, Kern County, Red Mountain — Yellow Aster Gold Mine —

Near Red Mountain Road, 0.8 miles west of U.S. 395, on the left when traveling west.

205 ► California, Kern County, Taft — History of Taft —

Near Supply Row near East 6th Street, on the right when traveling west.

206 ► California, Kern County, Taft — West Kern Oil Museum —

Near Wood Street, on the right when traveling east.

207 ► California, Lake County, Clearlake Oaks — 428 — Sulphur Bank Mine —

On Sulphur Bank Drive at California Route 20, on the left when traveling south on Sulphur Bank Drive.

208 ► California, Los Angeles County, Gorman — Castaic Powerplant — Built 1969 —

Near Vista Del Lago Road just west of Interstate 5.

209 ► California, Los Angeles County, Inglewood, South Los Angeles — 363 — Centinela Springs — Aguaje de la Centinela —

Near Warren Lane, 0.3 miles east of Centinela Avenue.

210 ► California, Los Angeles County, Lancaster — Los Angeles Aqueduct Construction — Through the Antelope Valley —

Near Avenue H west of California Route 14, on the right when traveling west.

211 ► California, Los Angeles County, Los Angeles, El Sereno — Ascot Reservoir: 1910 - present — Ascot Park —

Near Multnomah Street, 0.3 miles east of Soto Street, on the left when traveling east.

212 ► California, Los Angeles County, Los Angeles, Franklin Canyon — Upper Franklin Canyon Reservoir — Exact Center of Los Angeles —

On Franklin Canyon Drive, 0.7 miles south of Mulholland Drive.

213 ► California, Los Angeles County, Los Angeles, Los Feliz — William Mulholland — 1855 - 1935 —

On Riverside Drive at Los Feliz Boulevard, on the right when traveling south on Riverside Drive.

214 ► California, Los Angeles County, Los Angeles, Los Feliz — 162 — William Mulholland Memorial Fountain —

On Riverside Drive at Los Feliz Boulevard, on the right when traveling south on Riverside Drive.

215 ► California, Los Angeles County, Los Angeles, Miracle Mile — 170 — Hancock Park — La Brea Pits —

On Wilshire Boulevard at Curson Avenue, on the right when traveling west on Wilshire Boulevard.

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216 ► California, Los Angeles County, Los Angeles, Mission Hills — Mission Dam —

On Rinaldi Street, 0.1 miles east of Indian Hills Road, on the left when traveling east.

217 ► California, Los Angeles County, Los Angeles, Mission Hills — 150 — This Fountain — Brand Park —

Near San Fernando Mission Boulevard at Columbus Avenue, on the right when traveling west.

218 ► California, Los Angeles County, Los Angeles, Playa del Rey — 490 — Gabrielino-Tongva People — People of the Land and Sea —

Near Culver Boulevard at Pershing Drive, on the right when traveling west.

219 ► California, Los Angeles County, Los Angeles, Sherman Oaks — Melhorn Overlook — Mulholland Scenic Parkway —

On Mulholland Drive, 0.3 miles east of Benedict Canyon Drive, on the left when traveling east.

220 ► California, Los Angeles County, Los Angeles, Silver Lake — 422 — Silver Lake & Ivanhoe Reservoirs — Built in 1906 —

On Tesla Avenue at West Silver Lake Drive, on the left when traveling west on Tesla Avenue.

221 ► California, Los Angeles County, Los Angeles, Silver Lake — 422 — Silver Lake & Ivanhoe Reservoirs —

Near Tesla Avenue west of Armstrong Avenue, on the left when traveling west.

222 ► California, Los Angeles County, Los Angeles, Sunland — How the Tongva Used Local Native Plants —

Near Oro Vista Avenue at Grove Street, on the left when traveling north.

223 ► California, Los Angeles County, Los Angeles, Sunland — Sunland Welcome Nature Garden — Local Biodiversity —

On Sunland Boulevard at Fenwick Street, on the left when traveling east on Sunland Boulevard.

224 ► California, Los Angeles County, Los Angeles, Sylmar — 653 — "The Cascades"

On Foothill Boulevard, 0.1 miles north of Balboa Boulevard, on the right when traveling north. Reported missing.

225 ► California, Los Angeles County, Los Angeles, Sylmar — 50 — Mission Wells —

Near Havana Avenue at Bleeker Street.

226 ► California, Los Angeles County, Los Angeles, Sylmar — 653 — The Cascades —

On Foothill Boulevard, 0.1 miles west of Balboa Boulevard, on the right when traveling west.

227 ► California, Los Angeles County, Malibu, Eastern Malibu — Malibu Potteries — Adamson House —

On Pacific Coast Highway at Serra Road, on the left when traveling west on Pacific Coast Highway.

228 ► California, Los Angeles County, Redondo Beach, South Redondo — 373 — Old Salt Lake —

On North Harbor Drive at Herondo Street, on the right when traveling north on North Harbor Drive.

229 ► California, Los Angeles County, Santa Clarita, Newhall — Oak of the Golden Dream —

Near Placerita Canyon Road, 1.5 miles east of the Antelope Valley Freeway (California Route 14).

230 ► California, Los Angeles County, Santa Clarita, Newhall — 168 — Oak of the Golden Dream — ← 2 Miles —

On Sierra Highway, 0.2 miles north of Placerita Canyon Road, on the right when traveling south.

231 ► California, Los Angeles County, Santa Clarita, Newhall — 168 — Oak of the Golden Dream — ← 6 Miles —

On Lyons Avenue just east of Interstate 5, on the right when traveling east.

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232 ► California, Los Angeles County, Santa Clarita, Newhall — 168 — Oak of the Golden Dream —

Near Placerita Canyon Road, 1.5 miles east of the Antelope Valley Freeway (California Route 14).

233 ► California, Los Angeles County, Santa Clarita, Newhall — Oil in Placerita Canyon —

Near Placerita Canyon Road, 1.5 miles east of the Antelope Valley Freeway (California Route 14), on the right when traveling east.

234 ► California, Los Angeles County, Santa Clarita, Newhall — 172 — Pioneer Oil Refinery — ← 3 Miles —

On Lyons Avenue east of Interstate 5, on the right when traveling east.

235 ► California, Los Angeles County, Santa Clarita, Newhall — 172 — Pioneer Oil Refinery —

Near Pine Street, 0.2 miles south of Newhall Avenue, on the left when traveling south.

236 ► California, Los Angeles County, Santa Clarita, Newhall — Walker Ranch —

Near Placerita Canyon Road, 3.2 miles east of the Antelope Valley Freeway (California Route 14), on the right when traveling east.

237 ► California, Los Angeles County, Santa Clarita, Newhall — White Oil Seep — Do You Smell That? —

Near Canyon Trail near Placerita Canyon Road.

238 ► California, Los Angeles County, Santa Clarita, Stevenson Ranch — 516-2 — Mentryville —

Near Pico Canyon Road, 3 miles west of Interstate 5.

239 ► California, Los Angeles County, Santa Clarita, Valencia — 168 — Oak of the Golden Dream — ← 9 Miles —

On The Old Road just north of Rye Canyon Road, on the right when traveling south.

240 ► California, Los Angeles County, Signal Hill — 1 — Discovery of Oil on the Hill — Part of the “Memory Necklace” — A Series of Historical Panels Located in the Hilltop Loop Trail —

On Temple Avenue, on the right when traveling north.

241 ► California, Mariposa County, Coulterville — Whistling Billy —

On State Highway 49 at Main Street on State Highway 49.

242 ► California, Mariposa County, Mariposa — California State Mining and Mineral Museum —

Near Fairgrounds Road near California Highway 49, on the right when traveling east.

243 ► California, Mariposa County, Mariposa — La Mineta 1850 - Princeton 1854 - Mount Bullion 1862 —

On Princeton Road at Highway 49 Frontage Road on Princeton Road.

244 ► California, Mariposa County, Mariposa — The Ophir Mines

On Mount Ophir Road. Reported missing.

245 ► California, Mariposa County, Yosemite National Park — Yosemite National Park — UNESCO World Heritage Site —

On Village Drive north of Northside Drive.

246 ► California, Mendocino County, Ukiah — 980 — Ukiah Vichy Springs Resort —

On Vichy Springs Road, on the right when traveling east.

247 ► California, Mono County, Benton — Montgomery City California —

On Highway 6, on the right when traveling north.

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248 ► California, Mono County, Coleville — Golden Gate Mine —

On Golden Gate Road near Three Flags Highway (California Highway 395).

249 ► California, Mono County, June Lake — June Lake Mining District —

On North Shore Drive near Mount Vista Drive (Leonard Drive), on the right when traveling east.

250 ► California, Mono County, Lee Vining — Bennettville —

Near Saddlebags Lake Road at Tioga Pass Road (California Highway 120), on the right when traveling east.

251 ► California, Mono County, Lee Vining — Mono Mills —

On State Highway 120, 10 miles east of State Highway 395.

252 ► California, Mono County, Lundy — Lundy —

On Lundy Lake Road, 7 miles west of U.S. 395, on the right when traveling west.

253 ► California, Mono County, Mammoth Lakes — Mammoth City —

On Old Mammoth Road.

254 ► California, Mono County, Mammoth Lakes — The Mammoth Consolidated Gold Mine —

On Lake Mary Loop Road.

255 ► California, Monterey County, Aromas — A. R. Wilson Quarry —

On Quarry Road, 0.7 miles west of Carpenteria Road, on the right when traveling west.

256 ► California, Monterey County, Marina — Welcome to Fort Ord Dunes State Park! —

On 8th Street.

257 ► California, Monterey County, Monterey — Chestnut Tree —

Near Pacific Street, on the right when traveling south.

258 ► California, Napa County, Calistoga — Old Faithful Steam Well —

On Tubbs Lane, 0.8 miles south of Hwy 29, on the right when traveling south.

259 ► California, Napa County, Pope Valley — 2010-02 — Historic Aetna Mining District —

On Aetna Springs Road at Aetna Mine Road, on the right when traveling west on Aetna Springs Road.

260 ► California, Nevada County, Grass Valley — 298 — Empire Mine —

Near Empire Street near California Route 174.

261 ► California, Nevada County, Nevada City — English and New Salmon Mine Stamp Mill —

262 ► California, Nevada County, Nevada City — Giant —

On North Bloomfield Road at Relief Hill Road, on the right when traveling east on North Bloomfield Road.

263 ► California, Nevada County, Nevada City — Miners Foundry – Allans Machine Shop — Founded 1856 —

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264 ► California, Nevada County, North Columbia — Humbug Creek —

On North Bloomfield Road.

265 ► California, Nevada County, Truckee — Boca Townsite —

Near Stampede Meadows Road, 0.3 miles Interstate 80.

266 ► California, Nevada County, Truckee — Rocking Stone —

On High Street near Keiser Avenue.

267 ► California, Nevada County, Washington — 628 - 629 — Alpha and Omega —

On State Highway 20, on the left when traveling east.

268 ► California, Orange County, Brea — 918 — Olinda —

On Carbon Canyon Road at Santa Fe Road, on the right when traveling east on Carbon Canyon Road.

269 ► California, Orange County, Brea — 50 — Olinda Oil Museum and Trail — Olinda Oil Well #1 —

On Santa Fe Road east of Railway Avenue.

270 ► California, Orange County, Irvine, Northwood — The Evolution of the City — Irvine —

Near Jeffrey Road north of Roosevelt, on the right when traveling north.

271 ► California, Orange County, La Habra — West Coyote Field, The La Habra Research Laboratory —

On West Imperial Highway (California Route 90) near Beach Boulevard, on the right when traveling east.

272 ► California, Orange County, Yorba Linda — Section of the Cajon Canal —

Near Susanna Bryant Drive at Rancho Santa Ana Road, on the left when traveling south.

273 ► California, Orange County, Yorba Linda — The Historic Cajon Canal — 1878 - 1968 —

Near La Palma Avenue near Gypsum Canyon Road.

274 ► California, Placer County, Auburn — Gold Bug Stamp Mill —

Near Auburn-Folsom Road, 0.1 miles south of Lincoln Way.

275 ► California, Placer County, Auburn — Marguerite Mine “Quartz Rock” —

Near Lincoln Way.

276 ► California, Placer County, Auburn — Wise Power Plant —

On Ophir Road near Werner Road, on the right when traveling south.

277 ► California, Placer County, Cisco Grove — 2 — Meadow Lake —

On Eagle Lakes Road near Interstate 80, on the right when traveling west.

278 ► California, Placer County, Gold Hill — Hydraulic Mining —

On Interstate 80.

279 ► California, Placer County, Newcastle — 463 — Town of Ophir —

On Lozanos Road at Bald Hill Road, on the right when traveling north on Lozanos Road.

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280 ► California, Placer County, Newcastle — 400 — Virginiatown —

On Virginiatown Road, 0.2 miles east of Fowler Road, on the left when traveling east.

281 ► California, Placer County, Tahoe City — A Safe Harbor —

Near West Lake Boulevard (State Highway 89) west of State Highway 26.

282 ► California, Plumas County, Belden — Pacific Crest Trail —

On Belden Town Road, on the right when traveling west.

283 ► California, Plumas County, Blairsden — 196 — Jamison City, Eureka Mine and Mill, Johnstown — ← 6 Miles —

On California Route 70 at California Route 89, on the right when traveling west on State Route 70.

284 ► California, Plumas County, Chester — Humbug Valley —

On Forest Service Road 26N26, on the right when traveling south.

285 ► California, Plumas County, Chester — Soda Spring —

On Forest Service Road 26N26, on the right when traveling south.

286 ► California, Plumas County, Cromberg — Vardanega Spring —

On Mt. Tomba Road, on the right when traveling south.

287 ► California, Plumas County, Greenville — Engelmine —

On Diamond Mountain Road, 9.1 miles north of North Valley Road, on the right when traveling north.

288 ► California, Plumas County, Greenville — Seneca —

On Seneca Road (at milepost 6).

289 ► California, Plumas County, La Porte — Port Wine —

On Port Wine Ridge Road (County Route 690).

290 ► California, Plumas County, Quincy — Spanish Creek Mines —

Near Bucks Lake Road (County Route 119) at Snake Lake Road, on the left when traveling east.

291 ► California, Riverside County, Desert Center — Barren or Bountiful — Joshua Tree National Park —

On Cottonwood Springs Road.

292 ► California, Riverside County, Desert Center — 41 — Eagle Mountain Iron

Near Ragsdale Road west of Desert Center Rice Road (County Route 177), on the right when traveling east. Reported missing.

293 ► California, Sacramento County, Folsom — 569 — Mormon Island —

Near Folsom Point Road, 0.5 miles north of Natoma Street.

294 ► California, Sacramento County, Rancho Cordova, Mather — Vernal Pool Grassland — Mather Vernal Pools —

On Eagles Nest Road, 2 miles south of Douglas Road.

295 ► California, Sacramento County, Rancho Murieta — 468 — Gold Mining and Michigan Bar —

On Michigan Bar Road at Highway 16, on the left when traveling north on Michigan Bar Road.

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296 ► California, San Bernardino County, Baker — Salt Creek — A Desert and Riperian and Wetland Area —

On Death Valley Road, 1 mile south of Saratoga Springs Road.

297 ► California, San Bernardino County, Baker — Salt Creek Hills — Area of Critical Environmental Concern —

Near California Route 127, 29 miles north of Baker, on the right when traveling north.

298 ► California, San Bernardino County, Big Bear City — 5 Stamp Mill — Big Bear Valley Historical Museum —

Near Greenway Drive, 0.3 miles north of Big Bear Boulevard, on the right when traveling north.

299 ► California, San Bernardino County, Big Bear City — 619 — Holcomb Valley —

Near Greenway Drive, 0.3 miles north of Big Bear Boulevard, on the right when traveling north.

300 ► California, San Bernardino County, Big Bear Lake — 2 — Holcomb Valley

Near Holcomb Valley Road (Road 3N16) 0.5 miles east of Van Dusen Canyon Road (Road 3N09), on the right when traveling west. Reported missing.

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