
The Slate Mountains dominate this 1950s terrain within the Eldorado National Forest, revealing a landscape defined by timber extraction and early hydroelectric development. The South Fork American River carves through the lower half of the quadrangle, where the American River Intake Dam and a system of flumes and chutes highlight the era's water management. Evidence of the region’s shifting economy is visible in the numerous industrial markings, including a Dismantled Logging Railroad near Soapweed Creek and the inactive Slate Mtn Mine. Small residential and ranching pockets like Morton Ranch and Iowa Hill are scattered among the steep canyons, while the Mosquito District Sch serves the local community. Higher elevations are marked by the Slate Mtn Lookout and the Blodgett Experimental Forest, showing the intersection of forest service management and scientific study in the mid-century Sierra Nevada foothills.
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4 editions found
69 maps found

1889 Pyramid Peak
El Dorado County, CA

1891 Pyramid Peak
El Dorado County, CA

1895 Pyramid Peak
El Dorado County, CA

1896 Pyramid Peak
El Dorado County, CA

1949 Garden Valley
El Dorado County, CA

1949 Greenwood
El Dorado County, CA

1949 Latrobe
El Dorado County, CA

1950 Garden Valley
El Dorado County, CA

1950 Greenwood
El Dorado County, CA

1950 Latrobe
El Dorado County, CA

1950 Riverton
El Dorado County, CA

1950 Robbs Peak
El Dorado County, CA

1950 Saddle Mountain
El Dorado County, CA

1950 Slate Mtn
El Dorado County, CA

1950 Tunnel Hill
El Dorado County, CA

1951 Caldor
El Dorado County, CA

1951 Leek Spring Hill
El Dorado County, CA

1951 Leek Spring Hill
El Dorado County, CA

1951 Old Iron Mountain
El Dorado County, CA

1951 Peddler Hill
El Dorado County, CA

1952 Aukum
El Dorado County, CA

1952 Kyburz
El Dorado County, CA

1952 Loon Lake
El Dorado County, CA

1952 Omo Ranch
El Dorado County, CA

1952 Robbs Peak
El Dorado County, CA

1952 Sly Park
El Dorado County, CA

1953 Clarksville
El Dorado County, CA

1953 Sly Park
El Dorado County, CA

1954 Pilot Hill
El Dorado County, CA

1955 Echo Lake
El Dorado County, CA

1955 Emerald Bay
El Dorado County, CA

1955 Fallen Leaf Lake
El Dorado County, CA

1955 Freel Peak
El Dorado County, CA

1955 Meeks Bay
El Dorado County, CA

1955 Pyramid Peak
El Dorado County, CA

1955 Rockbound Valley
El Dorado County, CA

1979 Tragedy Spring
El Dorado County, CA

1992 Echo Lake
El Dorado County, CA

1992 Emerald Bay
El Dorado County, CA

1992 Freel Peak
El Dorado County, CA

1992 Meeks Bay
El Dorado County, CA

1992 Pyramid Peak
El Dorado County, CA

1992 Rockbound Valley
El Dorado County, CA

1992 Tragedy Spring
El Dorado County, CA

2021 Aukum
El Dorado County, CA

2021 Caldor
El Dorado County, CA

2021 Clarksville
El Dorado County, CA

2021 Echo Lake
El Dorado County, CA

2021 Emerald Bay
El Dorado County, CA

2021 Garden Valley
El Dorado County, CA

2021 Kyburz
El Dorado County, CA

2021 Latrobe
El Dorado County, CA

2021 Leek Spring Hill
El Dorado County, CA

2021 Loon Lake
El Dorado County, CA

2021 Meeks Bay
El Dorado County, CA

2021 Old Iron Mountain
El Dorado County, CA

2021 Omo Ranch
El Dorado County, CA

2021 Peddler Hill
El Dorado County, CA

2021 Pyramid Peak
El Dorado County, CA

2021 Riverton
El Dorado County, CA

2021 Robbs Peak
El Dorado County, CA

2021 Rockbound Valley
El Dorado County, CA

2021 Slate Mountain
El Dorado County, CA

2021 Sly Park
El Dorado County, CA

2021 Tragedy Spring
El Dorado County, CA

2022 Freel Peak
El Dorado County, CA

2022 Pilot Hill
El Dorado County, CA

2023 Greenwood
El Dorado County, CA

2023 Tunnel Hill
El Dorado County, CA