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Commercial use of parklands, such as the filming of advertising, brings in much needed income, but may not be fully compatible with public access and ecosystem protection.
near Pan Toll, Mount Tamaplais SP, CA (1990).
Extensive logging was done within the proposed redwood national park area while legislation was pending.
east bank of Redwood Creek, Redwood NP, CA (1969).
The Sierra Club was founded specifically to prevent the construction of this dam.
O'Shaugnessy Dam, Tuolumne River, Yosemite NP, CA (1981).
Human-set fires pose a major threat to many parks.
Rifle Range Road entrance, Wildcat Canyon RP, Richmond, CA (1990).
When O'Shaugnessy Dam was completed it flooded Hetch-Hetchy Valley.
Hetch-Hetchy Reservoir, Yosemite NP, CA (1984).
Clearcut logging extends right to the boundary of every redwood park.
looking north from the Bald Hills Road, near Orick, CA (1969).
Traffic congestion and other symptoms of over-use plague Yosemite, the most popular national park.
Yosemite Valley, Yosemite NP, CA (1993).
Immediately after the Giant Sequoia trees were discovered some of the largest were cut down and sections shipped east as curiosities.
North Grove, Calaveras Bigtrees SP, CA (1985).
The Disney corporation planned a huge recreational development for this valley, which has since been added to Sequoia National Park.
Mineral King, Sequoia NP, CA (1990).
Logging upstream has triggered erosion, which has in turn felled old growth redwoods within Humboldt Redwoods park..
near Albee Creek, Humboldt Redwoods SP, CA (1986).
Parking is a problem in many popular parks.
Whalers Cove, Point Lobos SR, near Carmel, CA (1977).
The US Cavalry built this camp in the nineteenth century when they were assigned to guard the Yosemite backcountry..
Cavalry Camp Meadow, Lyell Fork Merced River, Yosemite NP, CA (1986).
Many of the redwood parks consist primarily or entirely of cutover land.
Forest of Nisene Marks SP, near Aptos, CA (1990).
The limited size of their protected habitat, and proximity to highway 101 have in the past posed threats to the elk herd at Prairie Creek.
Elk Prairie, Prairie Creek Redwoods SP, CA (1983).
Natural disasters pose special problems for managers of open space.
east of Mount Saint Helens, Gifford Pinchott NF, WA (1987).
Power generation lakes occupy the heart of North Cascades National Park.
Diablo Lake, Ross Lake NRA, WA (1987).
All land for miles around Olympic National Park has been clearcut.
Hoh River, immediately west of Olympic NP, WA (1980).
Commercial development often extends to the very gates of national parks.
Springdale, UT (1978).