Roadless Areas

An Arc Shapefile format of the proposed Colorado roadless Areas (CRAs). The shapefile reflects the proposed CRAs from each of the National Forests within the State of Colorado. The statewide proposed CRA shapefile was compiled by the Regional Office's Geospatial Services by using the CRAs provided by each Forest within the State, and merging the individual data files (geodatabases; coverages, shapefiles) into one statewide shapefile Edits/Corrections: On June 21, 2011 the San Juan NF submitted corrections to two roadless area polygons; Turkey Creek CRA & West Needles CRA. On June 21, 2011, the ARNF submitted a correction to one roadless area polygon; Hell Canyon CRA. On June 24, 2011, the White River NF submitted corrections to roadless area polygons: Pagoda Peak; Morapos B; North Elk; East Divide/Four Mile Park; Crystal River; Boulder. On July 6, 2011 the Routt NF submitted corrections to roadless area polygons. Most of the changes result from updated road locations that the forest has fixed as it has worked on the Motor Vehicle Use Map, although a few are due to land exchanges or updates to older incorrectly placed ownership polygons. The land exchange updates make only fairly small changes in roadless acreage. The road location updates only make extremely small changes in roadless acreage. 1. The western tip of road 640.1, Lone Pine Road, whose location has been corrected, was removed from the Kettle Lakes roadless area. 2. The private property around Matheson Reservoir was updated to correct a poorly delineated old polygon which resulted in removal of a small portion of the Troublesome South roadless area. 3. The northern end of road 311.1 Base Camp Road has been corrected. The new location leaves the road edge in contact with the Long Park roadless area boundary. The boundary has been fixed to reflect the updated road location. 4. In the Morrison area on Yampa, an ownership polygon was updated to reflect a past land exchange. This resulted in removing a few small pieces of the Bushy Creek roadless area. 5. Along the eastern edge of the Dome Peak roadless area an updated ownership polygon location resulted in removal of a small sliver of roadless. 6. Have updated GPS locations for buildings and corrected road location associated with Big Creek Lake Block D recreation residence cabin, moved the Kettle Lakes roadless area boundary back a sliver to avoid these. 7. Have updated building and road locations associated with the Walton Peak Special Use Communication Site. Moved the Walton Peak roadless boundary back a sliver to avoid these. 8. Updated location for road 630.1, Aqua Fria, removed a bit of the Grizzly Helena roadless area. 9. Updated location for the N Red Canyon road (which still shows incorrectly in MVUM as this update isn't incorporated there yet) removed a bit of the Kettle Lakes roadless area. 10. Updated location for road 100.1, Red Dirt, removed a sliver of the Barber Basin roadless area. 11. Updated location for road 226.1, Deadman, removed a sliver of the Bushy Creek roadless area. 12. Updated location for road 16.1, Marvine-Phippsburg, removed a bit of the Pagoda Peaks roadless area. 13. Updated location for road 110.1, Black Mountain, removed a bit of the Black Mountain roadless area. 14. Updated location for road 116.1, Circle Creek, removed a bit of the Sugarloaf South roadless area. 15. Updated location for road 80.1, State Line, removed a sliver of the Dome Peak roadless area. On July 18, 2011 the GMUG NF submitted corrections to roadless area polygons. The changes reflect adjustments to polygons because of improved road locations. The roadless areas that were adjusted are as follows: American Flag Mountain; Beaver; Castle; Clear Fork; Cochetopa Hills; Electric Mountain; Flat Irons; Flattop Mountain; Kannah Creek; McClure Pass; Mount Lamborn; Poverty Gulch; Sanford Basin; Sawtooth; Soap Creek; Sunset; Tomahawk; Turner Creek; Unaweep; Whetstone In August 2011, the San Juan National Forest submitted corrections to roadless area polygons.本数据集为拟议科罗拉多无道路区域（Colorado Roadless Areas, CRAs）的Arc Shapefile格式文件。该Shapefile收录了科罗拉多州内各国家森林提出的全部拟议无道路区域数据。全州范围的拟议无道路区域Shapefile由区域办公室地理空间服务部门基于全州各林场提供的无道路区域数据编制，通过合并各独立数据文件（地理数据库、Coverage、Shapefile）整合为单一全州级Shapefile。 编辑/修正说明：2011年6月21日，圣胡安国家森林（San Juan NF）提交了两处无道路区域多边形修正：Turkey Creek CRA与West Needles CRA；同日，ARNF提交了一处无道路区域多边形修正：Hell Canyon CRA。2011年6月24日，怀特河国家森林（White River NF）提交了多块无道路区域多边形修正，涉及区域包括：Pagoda Peak、Morapos B、North Elk、East Divide/Four Mile Park、Crystal River、Boulder。2011年7月6日，鲁特国家森林（Routt NF）提交了无道路区域多边形修正。 本次变更多数源于各林场在更新机动车使用地图（Motor Vehicle Use Map, MVUM）过程中修正的最新道路位置，少数变更则源于土地交换或对早期位置有误的权属多边形的更新。其中，土地交换带来的无道路区域面积变更幅度较小，道路位置更新对无道路区域面积的影响也极微。具体修正项如下： 1. Lone Pine Road的640.1号道路西端位置已完成修正，该路段已从Kettle Lakes无道路区域中移除。 2. 对Matheson Reservoir周边的私有土地进行了更新，修正了早期绘制粗糙的权属多边形，该调整导致Troublesome South无道路区域移除了一小部分区域。 3. 311.1号Base Camp Road北端位置已修正，新的道路边线与Long Park无道路区域边界相接，边界已同步更新以匹配修正后的道路位置。 4. 在Yampa地区的Morrison区域，一处权属多边形已更新以反映过往土地交换情况，该变更导致Bushy Creek无道路区域移除了少量小块区域。 5. 沿Dome Peak无道路区域的东部边界，更新后的权属多边形位置导致该区域移除了一小条无道路区域。 6. 已更新Big Creek Lake Block D休闲住宅小屋相关的建筑GPS位置与道路位置，将Kettle Lakes无道路区域边界小幅后移以避开该区域。 7. 已更新Walton Peak专用通信站点相关的建筑与道路位置，将Walton Peak无道路区域边界小幅后移以避开该区域。 8. 630.1号Aqua Fria道路位置已更新，该变更导致Grizzly Helena无道路区域移除了一小部分区域。 9. N Red Canyon道路位置已更新（该更新尚未纳入MVUM，因此地图中仍显示错误位置），该变更导致Kettle Lakes无道路区域移除了一小部分区域。 10. 100.1号Red Dirt道路位置已更新，该变更导致Barber Basin无道路区域移除了一小条区域。 11. 226.1号Deadman道路位置已更新，该变更导致Bushy Creek无道路区域移除了一小条区域。 12. 16.1号Marvine-Phippsburg道路位置已更新，该变更导致Pagoda Peaks无道路区域移除了一小部分区域。 13. 110.1号Black Mountain道路位置已更新，该变更导致Black Mountain无道路区域移除了一小部分区域。 14. 116.1号Circle Creek道路位置已更新，该变更导致Sugarloaf South无道路区域移除了一小部分区域。 15. 80.1号State Line道路位置已更新，该变更导致Dome Peak无道路区域移除了一小条区域。 2011年7月18日，GMUG NF提交了无道路区域多边形修正，本次变更源于道路位置的优化，涉及的无道路区域包括：American Flag Mountain、Beaver、Castle、Clear Fork、Cochetopa Hills、Electric Mountain、Flat Irons、Flattop Mountain、Kannah Creek、McClure Pass、Mount Lamborn、Poverty Gulch、Sanford Basin、Sawtooth、Soap Creek、Sunset、Tomahawk、Turner Creek、Unaweep、Whetstone。 2011年8月，圣胡安国家森林（San Juan NF）提交了无道路区域多边形修正。