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Stricter regulations for these new protected areas began in 1939 from Bob
Marshall's efforts. This resulted in the "U-Regulations" as they came to be known. The U-Regulations superseded the L-20 Regulations and created two types of areas. Regulation U-1 created Wilderness Areas (over 100,000 acres).
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primitive classification was almost three times more than the
Service was willing or able to set aside. Areas in which the Park Service had shown a special interest, however, were almost all formally classified as primitive areas—even those under 100,000 acres (400 km)
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The L-20 regulations defined three types of areas: Natural Area, Experimental Forest and Range, and
Primitive Area. The L-20 section on Primitive Area read, "to maintain primitive conditions of transportation, subsistence, habitation, and environment to the fullest degree compatible with their
71:(5,000 to 100,000 acres). The U Regulations prohibited mechanized access, timber harvesting and road construction in the wilderness and wild areas. The U-Regulations replaced the term primitive area with
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32:. Although there are still lands with this title, most are now known as wilderness areas. The Forest Service began this new designation in 1929 with the L-20 regulations.
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128::Taken from Gerard, David p. 20 PDF, "The Origins of the Federal Wilderness System" Ch. 6 of an anthology by Anderson from the Hoover Institution.
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The
Development of Policy and Administration of Forest Service Primitive and Wilderness Areas in the Western United States
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highest public use." as stated by M. Rupert Cutler, in a briefing before the
Subcommittee on Public Lands of the
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The
Wilderness Act gave federal protection to these US Forest Service administrative areas and created the
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and were used by the Forest
Service until the passage of the federal
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51:, continued to add acreage to the fledgling wilderness system.
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Ph.D. dissertation,University of
Michigan 1953, p. 199
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total acreage recommendation to the Forest
Service for
47:The US Forest Service, along with preservationist
28:is a land designation previously used by the
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20:Car camping - Not allowed in Primitive Areas
62:were not of special interest to Marshall.
38:Committee on Interior and Insular Affairs
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88:National Wilderness Preservation System
160:: CS1 maint: archived copy as title (
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196:Protected areas of the United States
108:Timeline of wilderness areas from
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42:U.S. House of Representatives
201:United States Forest Service
30:United States Forest Service
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179:page on the U-Regulations.
67:Regulation U-2 created
177:Forest History Society
110:Forest History Society
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120:Gilligan, James P.
59:in the West which
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136:. Archived from
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49:Bob Marshall
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190:Categories
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69:Wild Areas
94:Footnotes
83:of 1964.
77:wild area
156:cite web
141:(PDF)
134:(PDF)
162:link
126:Note
75:and
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