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This dataset depicts roads built on the Tongass National Forest prior to 1960. This dataset is part of a larger analysis of road building and timber harvest on the Tongass National Forest, compiled for the report Scientific Basis for Roadless Area Conservation (http://www.consbio.org/cbi/projects/show.php?page=roadless/roadless.htm), pp 70-73. Road segments from a US Forest Service roads layer were attributed to the most likely decade in which the road was built, as determined by an analysis of connectivity to clearcuts on the Tongass National Forest from that decade. It was assumed that following 1960, harvests required access to mills or extraction sites, and thus roads connecting to them were most likely built...
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Utah Environmental Congress and Grand Canyon Trust's Unified Forest Service Wilderness Proposal for Beaver, Emery, Grand, Piute and San Juan and part of Sevier Counties, Utah The Unified Forest Wilderness Proposal represents the Utah Environmental Congress and Grand Canyon Trust’s proposed boundaries for inclusion in the National Wilderness Preservation System via an Act of Congress. The Unified Forest Wilderness Proposal represents the combination and unification of the Utah Environmental Congress and the Utah Forest Network wilderness proposals, both of which were drafted in 2004 and 2005. The boundaries of the Unified Proposal were reviewed and updated in 2010, 2011 and 2012 using current agency and state...
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This dataset depicts roads built on the Tongass National Forest during the 1960s. This dataset is part of a larger analysis of road building and timber harvest on the Tongass National Forest, compiled for the report Scientific Basis for Roadless Area Conservation (http://www.consbio.org/cbi/projects/show.php?page=roadless/roadless.htm), pp 70-73. Road segments from a US Forest Service roads layer were attributed to the most likely decade in which the road was built, as determined by an analysis of connectivity to clearcuts on the Tongass National Forest from that decade. It was assumed that following 1960, harvests required access to mills or extraction sites, and thus roads connecting to them were most likely built...
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This dataset depicts roads built on the Tongass National Forest during the 1970s. This dataset is part of a larger analysis of road building and timber harvest on the Tongass National Forest, compiled for the report Scientific Basis for Roadless Area Conservation (http://www.consbio.org/cbi/projects/show.php?page=roadless/roadless.htm), pp 70-73. Road segments from a US Forest Service roads layer were attributed to the most likely decade in which the road was built, as determined by an analysis of connectivity to clearcuts on the Tongass National Forest from that decade. It was assumed that following 1960, harvests required access to mills or extraction sites, and thus roads connecting to them were most likely built...
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This dataset depicts roads built on the Tongass National Forest during the 1990s. This dataset is part of a larger analysis of road building and timber harvest on the Tongass National Forest, compiled for the report Scientific Basis for Roadless Area Conservation (http://www.consbio.org/cbi/projects/show.php?page=roadless/roadless.htm), pp 70-73. Road segments from a US Forest Service roads layer were attributed to the most likely decade in which the road was built, as determined by an analysis of connectivity to clearcuts on the Tongass National Forest from that decade. It was assumed that following 1960, harvests required access to mills or extraction sites, and thus roads connecting to them were most likely built...
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This dataset displays the boundaries of Intact Forest Landscapes for the islands in the Tongass region of the state of Alaska. Intact Forest Landscapes for islands are defined as areas at least 500 hectares that are absent of human disturbance visible on satellite imagery (e.g., roads, logging, mining, settlement). For more information, see the full report, available on the Global Forest Watch website (www.globalforestwatch.org), or the Conservation Biology Institute website (http://www.consbio.org/cbi/projects/show.php?page=alaska).
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This dataset depicts roads built on the Tongass National Forest during the 1980s. This dataset is part of a larger analysis of road building and timber harvest on the Tongass National Forest, compiled for the report Scientific Basis for Roadless Area Conservation (http://www.consbio.org/cbi/projects/show.php?page=roadless/roadless.htm), pp 70-73. Road segments from a US Forest Service roads layer were attributed to the most likely decade in which the road was built, as determined by an analysis of connectivity to clearcuts on the Tongass National Forest from that decade. It was assumed that following 1960, harvests required access to mills or extraction sites, and thus roads connecting to them were most likely built...


    map background search result map search result map Utah Environmental Congress and Grand Canyon Trust's Unified Forest Service Wilderness Proposal for Beaver, Emery, Grand, Piute and San Juan and part of Sevier Counties, Utah Proportion of precipitation as snow 1950 Western Washington Intact Forest Landscapes of Alberta, Canada Alaska's Intact Forest Landscapes - Tongass (Islands) Tongass National Forest Roads - Pre 1960 Tongass National Forest Roads - 1960s Tongass National Forest Roads - 1970s Tongass National Forest Roads - 1980s Tongass National Forest Roads - 1990s Utah Environmental Congress and Grand Canyon Trust's Unified Forest Service Wilderness Proposal for Beaver, Emery, Grand, Piute and San Juan and part of Sevier Counties, Utah Tongass National Forest Roads - Pre 1960 Proportion of precipitation as snow 1950 Western Washington Tongass National Forest Roads - 1970s Tongass National Forest Roads - 1960s Tongass National Forest Roads - 1990s Tongass National Forest Roads - 1980s Alaska's Intact Forest Landscapes - Tongass (Islands) Intact Forest Landscapes of Alberta, Canada