Sam Friedman 20230531 vector digital data Portland, OR Oregon Fish and Wildlife Office https://fws.maps.arcgis.com/home/item.html?id=44ab21a0cbd849c1a1b7382588c8bb30 https://iris.fws.gov/APPS/ServCat/Reference/Profile/178589 Feature layer of potential vernal pools as topographic basins (sinks) where surface water could collect. These polygons were modeled from a lidar 1-foot pixel DEM within the mapped areas of mounded topography and indicate potential for inundating vernal pool habitat, but only field surveys can confirm the presence of that habitat or associated species. Pool basins meet minimum depth and area thresholds (0.5 inch and 50 ft2) and were subjectively filtered to eliminate depressions of a size, depth, or condition inconsistent with the potential presence of vernal pool biota, including very small and/or shallow depressions, and impoundments or excavations such as quarries, stock ponds, lakes, etc. Attributes for each pool polygon include maximum and mean depth, basin volume, and the contributing watershed catchment area.The models delineating potential vernal pools (Pools) were generated by filling depressions in the DEM using the ArcGIS Spatial Analyst FILL() tool, then subtracting the unfilled surface from the filled surface using raster arithmetic to derive a depression Depth raster on a cell by cell basis. The Depth raster was thresholded at 1/2 ft minimum depth and 50 sq ft minimum surface area, and converted to vector polygons. This is a combined feature class from 158 individual feature classes used to delineate pool boundaries within each of the analysis area tiles.All basin polygons were then manually reviewed to identify and eliminate all drainage ditches, irrigation canals, stock ponds, lakes, quarries, artificial impoundments and other manmade depressions and water features not qualifying as potential vernal pools. We retained disturbed vernal pools, or semi-anthropogenic pools with intact apparently duripan substrate potentially supporting vernal pool biota. This process was subjective to a degree, but used orthophoto/historic orthophoto overlays to assess disturbance and vegetation patterns.All filtered pool polygons were processed using spatial and zonal overlays with the depth, slope and flow accumulation raster models to populate individual pool feature attributes for depth, volume, area, and contributing watershed. Processing was accomplished on a tile by tile basis using Python scripting in the ArcGIS Jupyter Notebook. All pool polygons were assigned a feature ID attribute corresponding with the associated Mounded Landform habitat polygons so that combined pool statistics for each landform polygon could be computed. Potential vernal pools on remaining mounded landform habitat areas from hydrologic modeling of undrained topographic depressions (basins) on a high-resolution (1' pixel) lidar DEM surface. 20221001 07:00:00.000+00:00 20231001 06:59:59.999+00:00 Complete notPlanned Rogue River Valley in southwestern Oregon. -123.02718 -122.57059 42.66295 42.19589 None Agate-Winlo Branchinecta lynchi Cook's desert parsley desert parsley endangered species fairy shrimp large-flowered woolly meadowfoam lidar Limnanthes pumila ssp. grandiflora Lomatium cookii meadowfoam mounded landform OFWO Oregon Fish and Wildlife Office recovery Region 1 Rogue River Valley Rogue Valley US Fish and Wildlife Service USFWS vernal pool fairy shrimp vernal pools ISO 19115 Topic Category inlandWaters None The data is not intended for regulatory purposes and that the appropriate Federal and State agencies need to be contacted for project clearance requirements. For further information, please contact Sam Friedman, sam_friedman@fws.gov. Sam Friedman Oregon Fish and Wildlife Office Botanist physical

777 NW Garden Valley Boulevard

Roseburg OR 97471 541-957-3478 sam_friedman@fws.gov U.S. Fish and Widlife Service, Columbia-Pacific Northwest Region, Ecological Services, Oregon Fish and Wildlife Office; Keith Perchemlides, Groundtruth Ecological; Cam Patterson, CC Patterson and Associates Esri ArcGIS 13.1.0.41833 See the report Mapping and Assessment of Mounded Vernal Pool Habitat in the Rogue River Valley of Southwest Oregon (https://iris.fws.gov/APPS/ServCat/Reference/Profile/178610) for full methodology related to the resource. See the report Mapping and Assessment of Mounded Vernal Pool Habitat in the Rogue River Valley of Southwest Oregon (https://iris.fws.gov/APPS/ServCat/Reference/Profile/178610) for full methodology related to the resource. See the report Mapping and Assessment of Mounded Vernal Pool Habitat in the Rogue River Valley of Southwest Oregon (https://iris.fws.gov/APPS/ServCat/Reference/Profile/178610) for full methodology related to the resource. be7742e4-75fe-4e16-8476-132fae19c4b4 See the report Mapping and Assessment of Mounded Vernal Pool Habitat in the Rogue River Valley of Southwest Oregon (https://iris.fws.gov/APPS/ServCat/Reference/Profile/178610) for full methodology related to the resource. For a clearer, more precise view of the relevant topography, and to enable modeling of hydrologic features, we generated high-resolution surface topography coverage for all locations with mounded landform. Within and surrounding our mapped landform polygons, we reprocessed the raw DOGAMI lidar point-cloud data to a 1-foot pixel resolution digital elevation model (DEM). Viewed as hillshade topography in GIS, the high-resolution DEM allowed us to refine our habitat polygons and assessment of landform condition and geomorphology to greater accuracy. We used this high-resolution lidar coverage and ArcGIS Spatial Analyst tools to model surface hydrology within all mounded landform habitat polygons. Potential vernal pools were modeled as undrained topographic depressions, or basins, in the landform with a depth of at least 0.5 inch and a minimum area of 50 ft2. We manually reviewed the modeling results to remove artificial features such as irrigation ditches or ponds that obviously did not qualify as potential vernal pools – but retaining disturbed or altered basins along with more intact pools. For all basins, we calculated topography-based hydrologic metrics in GIS, resulting in full coverage of potential vernal pools as polygons with attributes of depth, area, volume, and contributing drainage area. We also modeled runoff surface flow patterns within our landform polygons to map and quantify the network of ephemeral streams interconnecting the vernal pool basins, and to compute contributing watershed values for basins. The overall result of this hydro-topographical analysis was to map the physical potential for vernal pool habitat within each mounded landform polygon and illustrate the stream network patterns of the surface drainage tying those pools together. Because natural vernal pool habitat (especially on the Agate-Winlow soils) exhibits a characteristic pattern of drainage network and pool basins, these models provide a basis for evaluating habitat quality and disturbance as well as estimating the amount and condition of vernal habitat. We summarized the pool basin and ephemeral stream data to the mapped habitat polygons to quantify this hydrologic potential as attributes of pool density, average size, depth, and volume. Because of natural slope and drainage, or due to anthropogenic impacts, some mounded landform areas have little or no vernal pool basins present, but still support ephemeral stream networks and the potential for vernal wetland habitat. Vector vector Pools Potential vernal pools on remaining mounded landform habitat areas from hydrologic modeling of undrained topographic depressions (basins) on a high-resolution (1' pixel) lidar DEM surface. OBJECTID Sequential unique whole numbers that are automatically generated. ESRI Pool_ID Unique identifier for each undrained sink in the lidar DEM qualifying as potential vernal pool habitat according to size, substrate, and depth criteria. USFWS MaxDepth Depth in feet at the deepest point in the pool below the spill-elevation of the filled sink. USFWS MeanDepth Average depth in feet below fill elevation across the entire sink of 1 foot depth raster cells. USFWS VP_Vol Volume in cubic feet of the filled sink. USFWS WS_Area Area in square feet of the contributing watershed surface flowing to the outlet of the filled sink. USFWS Shape__Area Length of feature in internal units. ESRI Shape__Length Area of feature in internal units squared. ESRI Oregon Fish and Wildlife Office mailing

2600 Southeast 98th Avenue Suite 100

Portland OR 97266-1398 503-231-6179 Monday - Thursday 8:00 am - 4:00 pm 20231129 Zachary Cravens Oregon Fish and Wildlife Office GIS Specialist physical

2600 Southeast 98th Avenue Suite 100

Portland OR 97266-1398 503-231-6912 zachary_cravens@fws.gov Content Standard for Digital Geospatial Metadata with Biological Data Profile FGDC-STD-001.1-1999