Map of the alluvial valley of the Mississippi River from the head of St. Francis Basin to the Gulf of Mexico, showing lands subject to overflow, location of levees and trans-alluvial profiles Downloaded from: https://www.digitalcommonwealth.org/search/commonwealth:7h14b0450 Edited (to correct position of panels) and georeferenced by Yvonne Allen (USFWS) to geographic NAD1927 using ArcGIS , 3rd order polynomial and 80 ground control points using lat lon grid only. RMS=0.00408 SERVICE DEFINITION FILE ONLY For Geographic NAD 27 geotiff see: https://www.sciencebase.gov/catalog/item/58f66491e4b0bd52222f7821
This set of maps shows relative habitat diversity (complexity) as it relates to the number of different dominant cover types are found in 1 hectare, and the number of structural types found in 1 hectare. Component layers are included, as are layers of channel boundaries, reaches, and bottomland kilometers.
This set of maps shows relative habitat quality for snakes that prefer the rocky outside margin of the bottomland area. Component layers (type and count of cover types, distance to bottomland boundary and distance to permanent water) are included, as are associated layers of channel boundaries, reaches, and bottomland kilometers.
This collection of maps shows relative habitat quality for a suite of species that use riparian overstory habitats. Component layers include: tree patch size, presence and complexity of riparian understory, and abundance of tamarisk. Associated layers such as river channels at high flow and bottomland reaches are included for reference.
This data layer summarizes ecological systems and land cover classes described in state-level and national-level maps as Broadly Defined Habitats for groups of species of conservation concern. Each grid cell in the raster is assigned a Condition Index value based on desired condition metrics using ancillary datasets and a decision tree approach for each assessed habitat. Grid cells are also assigned bar code descriptors indicating which metrics contributed to the Condition Index score for that cell. This layer also contains information about potential habitats based on the LANDFIRE Biophysical Settings data layer. This layer was developed to support the next iteration of the Conservation Blueprint developed by the...
This collection of maps shows fluvial geomorphic features of the Colorado River bottomland including river channel boundaries at high flow (31,300 cubic ft/sec on 06/28/2011 at the Cisco gage) and at lower flow (3,410 cubic ft/sec on 09/06/2010 at the Cisco gage). Also shown is the bottomland boundary delineating the currently active fluvial surface; the bottomland is subdivided by both reaches and bottomland kilometers for reference. Centerlines for the bottomland and 2010 river channel are included, also.
This set of maps shows relative habitat quality for species that prefer open areas. Component layers (herbacoeus areas, distance to high water) are included, as are associated layers of channel boundaries, reaches, and bottomland kilometers.
This set of maps shows relative habitat quality for riparian understory species, both with and without a penalty applied for abundant tamarisk. Component layers are included, as are complementary layers of channel boundaries, reaches, and bottomland kilometers.