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1995 Map of Sleepy Valley

Name: 1995 Topographic Map of Sleepy Valley
Creator: U.S. Geological Survey
Published: 1999
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1999

About this map

The San Andreas Rift Zone slices through the northern portion of this landscape, defining the geologic character of Leona Valley and Portal Ridge. This 1995 revision reveals a rugged intersection of tectonic forces and mid-century ranching heritage within the Angeles National Forest. Small, private enclaves like Sleepy Valley and The Oaks are situated along the southern drainage of Spade Canyon, while family-named holdings such as Annan Ranch and Lannan Ranch occupy the canyons to the east.

Industrial activity is evidenced by the Gray Eagle Mine Dump near Spunky Canyon, and numerous unnamed prospects scattered across the ridgelines. Water management is a primary feature of the terrain, centered on the Bouquet Reservoir and a network of named springs including Big Oak Spring and Fryingpan Springs. The presence of the L.A. County Fire Sta and a Heliport highlights the logistical demands of managing this fire-prone wilderness area during the late twentieth century.