Folders: ROOT > ScienceBase Catalog > Conservation Planning along the Colorado River in Utah ( Show direct descendants )
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The central Meander Canyon reach extends for 38 km from Bkm 78 at the mouth of Shafer Canyon to Bkm 40 at the upstream end of The Loop. This sinuous to meandering canyon trends generally north-south across broadly-folded, sub-horizontal strata of the lower Cutler Fm, locally capped by the arkosic facies of the Cutler Fm. The canyon is generally symmetric in cross-profile, 460 to 760 m wide and 90 to 200 m deep. The average gradient along this reach and throughout Meander Canyon is approximately 0.02%. This long and narrow reach is heavily shrub dominated with tamarisk (19%), native xeric shrubs (9%), willow (8%), and seepweed (2%). Many native riparian tree species are present, though none are common; cottonwood,...
This short reach (5 km) forms the transition between Westwater Canyon (Bkm 202) and the broad strike valley of Cisco Landing (Bkm 197). It expands from the narrow (about 150 m wide) gorge of Westwater Canyon to the relatively broad (as much as 1500 m wide) valley of Cisco Landing. The cliffs flanking the river along this reach are, for the most part, composed of sandstones of the Wingate, Kayenta, Dakota and Entrada Formations. This reach is short (about 5 km), nearly straight, and has an average gradient of approximately 0.05%. Vegetation is mostly non-native herbaceous cover, typically associated with current or inactive agricultural activities (54% of vegetative cover). Xeric shrub cover is common (15%)...
This dataset represents the relative abundance of non-native, woody cover types in vegetation patches, as mapped from high resolution imagery from 2010. This mapping was conducted as part of the Colorado River Conservation Planning Project, a joint effort between the National Park Service, The Nature Conservancy, US Geological Survey, Bureau of Land Management, and Utah Forestry Fire and State Lands.
Categories: Data;
Types: Citation,
Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Arches National Park,
Canyonlands National Park,
Colorado River,
Grand County,
Moab,
This is a model of the relative costs of restoration for of vegetation communities of the Colorado River bottomland in Utah. The model incorporates the prevalence of woody and herbaceous non-native species, difficulty of access to bottomland areas, and presence of woody and/or herbaceous non-native species. See Open File Report, Rasmussen and Shafroth, Colorado River Conservation Planning for geoprocessing details.
Categories: Data;
Types: Citation,
Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Arches National Park,
Canyonlands National Park,
Colorado River,
Grand County,
Moab,
This is a model of the potential for natural recovery in vegetation communities of the Colorado River bottomland in Utah. The model incorporates the prevalence of native species, areas inundated in high flow conditions, and the prevalence of non-native species. See Open File Report, Rasmussen and Shafroth, Colorado River Conservation Planning for geoprocessing details.
Categories: Data;
Types: Citation,
Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Arches National Park,
Canyonlands National Park,
Colorado River,
Grand County,
Moab,
This dataset represents the variety (count of unique classes within 0.5 ha) of vegetation communities, river channel and bare areas (often sand bars) mapped along the Colorado River bottomland from the Colorado state line (San Juan and Grand Counties, Utah) to the southern Canyonlands NP boundary, as of September 2010. Traditional image interpretation cues were used to develop the polygons, such as shape, size, pattern, tone, texture, color, and shadow, from high resolution, true color, aerial imagery (0.3m resolution), acquired for the project. Additional, public available aerial photos (NAIP, 2011) were used to cross-reference cover classes. As with any digital layer, this layer is a representation of what is...
Categories: Data;
Types: Citation,
Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Arches National Park,
Canyonlands National Park,
Colorado River,
Grand County,
Moab,
The Cisco Wash to Dry Gulch reach begins near the mouth of Dry Gulch (at the downstream end of Cisco Landing reach – Bkm193) and extends 10 km to the upstream limits of McGraw Bottom at the point where Cisco Wash becomes a yazoo stream (running parallel to the Colorado channel - about 1.6 river km upstream of the mouth of Cisco Wash). This reach flows within a transverse valley that cuts across the axis of the northwest plunging syncline that bounds the southwest flank of Uncompahgre Uplift. This valley cuts across gently dipping strata of the Morrison, Dakota, Cedar Mountain and Mancos formations, and its character is largely controlled by the lithology and structure of these geologic formations. The valley is...
The Moab Valley reach consists of one large meander bend that extends 4 km from Bkm 124 (at the US 191 highway bridge) to Bkm 120 (at The Portal). A broad floodplain (up to 1830 m wide) bounds the south and east side of the river channel. This floodplain contains the Matheson Wetlands, the largest riparian wetlands along the Colorado River between the Utah-Colorado border and Lake Powell. The Moab Valley is a breached, salt-cored anticline within the Paradox Basin. This fault-bounded structural valley is actively subsiding as the groundwater circulation associated with the Colorado River continues to dissolve salts within the Paradox Formation that underlies the alluvial fill of the valley floor. In part because...
The Cataract Canyon Reach extends for 16 km from Bkm 16 (just downstream from Spanish Bottom) to the maximum upstream limit of Lake Powell at Bkm 0. Averaging approximately 900 m in width and 300 to 370 m in depth, Cataract Canyon is the deepest canyon within the 20 reaches defined by this project. This moderately sinuous canyon trends generally northeast-southwest through gently-dipping, pervasively-faulted strata of the Honaker Trail and lower Cutler formations. This pervasive normal faulting is yet another manifestation of ‘salt tectonics’ within the Paradox Basin. Continuing solution of salts within the Paradox Fm (associated with continuing incision of the Canyonlands region by the Colorado River and its...
Final models for riparian understory plus all model component layers. For more detailed information, please visit this project's ScienceBase landing page at https://doi.org/10.5066/P927I36K, or the final report for this project at https://www.coloradomesa.edu/water-center/documents/rasmussen_shaftroth_2016_watercenter_cmu.pdf.
Final model for bat feeding. For more detailed information, please visit this project's ScienceBase landing page at https://doi.org/10.5066/P927I36K, or the final report for this project at https://www.coloradomesa.edu/water-center/documents/rasmussen_shaftroth_2016_watercenter_cmu.pdf.
The Potash reach is one of the least sinuous (average sinuosity 1.1) of the 20 reaches defined by this project. This generally south-trending reach extends for 10 km from Bkm 100 just upstream of Potash to Bkm 90 near the south end of Pyramid Butte. This reach flows within a transverse valley that is cut within sub-horizontal strata of the lower Cutler Formation and, for about one 1.6 km, within the Honaker Trail Fm. This valley of the Potash reach is highly variable in shape, ranging from 825 to more than 1525 m wide and 60 to 275 m deep. The average gradient along this reach is approximately 0.03% slope. This reach has a long history of industrial activity both in the river bottom and in the adjacent uplands....
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