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Mores Creek Arm Bathymetric Survey - Depth Contours, Lucky Peak Lake, Boise County, Idaho, May 11 - 13, 2021 In 2004, about 90 migrating elk drowned after attempting to cross thin ice on the Mores Creek arm of Lucky Peak Lake upstream of the Highway 21 bridge. To better understand the depths over a range of reservoir pool elevations in the Mores Creek Arm, the U.S. Geological Survey, in cooperation with the Lucky Peak Power Plant Project, conducted high-resolution multibeam echosounder (MBES) bathymetric surveys on the Mores Creek arm on Lucky Peak Lake. The MBES data will assist reservoir managers and wildlife biologists with regulating reservoir water surface elevations (WSE) to support successful big game migration across Mores Creek on Lucky Peak Lake. Data collection provided nearly 100 percent coverage of bed elevations... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: Boise, GPS measurement, Hypack, Hysweep, ID, All tags... Idaho, Idaho, Lucky Peak Lake, Lucky Peak Lake, Mores Creek, Mores Creek, Multibeam sonar, Pacific Northwest, USA, United States, bathymetry, bathymetry measurement, contouring, dam sites, digital elevation models, elevation, erosion, gaging stations, geospatial analysis, geospatial datasets, inlandWaters, land surveying, location, reference locations, reservoirs, sedimentation, spatial analysis, territorial waters, topographic maps, topography, Fewer tags Kootenai River Supplemental Surveys near Bonners Ferry, ID, 2012-2022 In 2009, the Kootenai Tribe of Idaho released and implemented the Kootenai River Habitat Restoration Master Plan. This plan aimed to restore, enhance, and maintain the Kootenai River habitat and landscape to support and sustain habitat conditions for aquatic species and animal populations. In support of these restoration efforts, the U.S. Geological Survey, in cooperation with the Kootenai Tribe of Idaho, conducted high-resolution multibeam echosounder bathymetric surveys as a baseline bathymetric monitoring survey on the Kootenai River near Bonners Ferry, Idaho. Three channel patterns or reaches exist in the study area: braided, meander, and a transitional zone connecting the braided and meander reaches. Bathymetric... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: ASCII, Bathymetry, Bonners Ferry, Geology, Hypack, All tags... Hysweep, ID, Idaho, Kootenai River, Multibeam, U.S. Geological Survey, USA, USGS, Water Depth, XYZ, elevation, inlandWaters, inlandWaters, swath bathymetry, topography, Fewer tags Lake Koocanusa Maximum and Minimum Pool Elevation Contours, Lincoln County, Montana In 2016, the U.S. Army Corps of Engineers (USACE) started collecting high-resolution multibeam echosounder (MBES) data on Lake Koocanusa. The survey originated near the International Boundary (River Mile (RM) 271.0) and extended down the reservoir, hereinafter referred to as downstream, about 1.4 miles downstream of the Montana 37 Highway Bridge near Boulder Creek (about RM 253). USACE continued the survey in 2017, completing a reach that extended from about RM 253 downstream to near Tweed Creek (RM 244.5). In 2018, the U.S. Geological Survey (USGS) Idaho Water Science Center completed the remaining portion of the reservoir from RM 244.5 downstream to Libby Dam (RM 219.9). The MBES data collected in 2016 and 2017... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: GPS measurement, Hypack, Hysweep, Kootenai, Kootenai-Pend Oreille-Spokane, All tags... Lincoln, Montana, Multibeam sonar, Pacific Northwest, United States, Upper Kootenai, bathymetry, bathymetry measurement, contouring, dam sites, digital elevation models, elevation, erosion, gaging stations, geospatial analysis, geospatial datasets, inlandWaters, land surveying, lidar, location, reference locations, reservoirs, sedimentation, spatial analysis, territorial waters, topographic maps, topography, Fewer tags Mores Creek Arm Bathymetric Survey - Depth DEM, Lucky Peak Lake, Boise County, Idaho, May 11 - 13, 2021 In 2004, about 90 migrating elk drowned after attempting to cross thin ice on the Mores Creek arm of Lucky Peak Lake upstream of the Highway 21 bridge. To better understand the depths over a range of reservoir pool elevations in the Mores Creek Arm, the U.S. Geological Survey, in cooperation with the Lucky Peak Power Plant Project, conducted high-resolution multibeam echosounder (MBES) bathymetric surveys on the Mores Creek arm on Lucky Peak Lake. The MBES data will assist reservoir managers and wildlife biologists with regulating reservoir water surface elevations (WSE) to support successful big game migration across Mores Creek on Lucky Peak Lake. Data collection provided nearly 100 percent coverage of bed elevations... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Raster; Tags: Boise, GPS measurement, Hypack, Hysweep, ID, All tags... Idaho, Idaho, Lucky Peak Lake, Lucky Peak Lake, Mores Creek, Mores Creek, Multibeam sonar, Pacific Northwest, USA, United States, bathymetry, bathymetry measurement, contouring, dam sites, digital elevation models, elevation, erosion, gaging stations, geospatial analysis, geospatial datasets, inlandWaters, land surveying, location, reference locations, reservoirs, sedimentation, spatial analysis, territorial waters, topographic maps, topography, Fewer tags Streamflow regressions and annual and semimonthly exceedance probability statistics for wild and scenic rivers, Owyhee Canyonlands Wilderness, Idaho The U.S. Geological Survey (USGS), in cooperation with the Bureau of Land Management, used streamflow measurements at 11 partial-record sites and related them to nearby USGS or Idaho Power Company real-time streamgages (index sites) to provide daily mean streamflow values at ungaged (partial-record) sites within the Wild and Scenic River of the Owyhee Canyonlands Wilderness, Idaho. Daily mean streamflow was estimated by developing a regression relationship between streamflow at each partial-record site and the index site for the period of record of the index site. The regressions are then used to estimate annual and semimonthly 20-, 50-, and 80-percent exceedance probability streamflow statistics at each partial-record... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bruneau, Hydrology, Idaho, Land, Middle Owyhee, All tags... Middle Snake, Nevada, North America, Oregon, Owyhee, Pacific Northwest, Scientific Investigations Report, South Fork Owyhee, USGS Science Data Catalog (SDC), USGS publication series, United States, biological and physical processes, climate change, climatologyMeteorologyAtmosphere, data management, data release, effects of climate change, environment, geoscientificInformation, geospatial analysis, inlandWaters, location, mathematical modeling, mathematical simulation, regression analysis, statistical analysis, stream discharge, stream-gage measurement, streamflow, study areas, surface-water level, time series datasets, Fewer tags Lake Koocanusa Stage-Area-Capacity Tables, Lincoln County, MT In 2016, the U.S. Army Corps of Engineers (USACE) started collecting high-resolution multibeam echosounder (MBES) data on Lake Koocanusa. The survey originated near the International Boundary (River Mile (RM) 271.0) and extended down the reservoir, hereinafter referred to as downstream, about 1.4 miles downstream of the Montana 37 Highway Bridge near Boulder Creek (about RM 253). USACE continued the survey in 2017, completing a reach that extended from about RM 253 downstream to near Tweed Creek (RM 244.5). In 2018, the U.S. Geological Survey (USGS) Idaho Water Science Center completed the remaining portion of the reservoir from RM 244.5 downstream to Libby Dam (RM 219.9). The MBES data collected in 2016 and 2017... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service U.S. Geological Survey and U.S. Army Corps of Engineers Bathymetric Survey of Lake Koocanusa, Lincoln County, Montana, 2016—2018 In 2016, the U.S. Army Corps of Engineers (USACE) started collecting high-resolution multibeam echosounder (MBES) data on Lake Koocanusa. The survey originated near the International Boundary (River Mile (RM) 271.0) and extended down the reservoir, hereinafter referred to as downstream, about 1.4 miles downstream of the Montana 37 Highway Bridge near Boulder Creek (about RM 253). USACE continued the survey in 2017, completing a reach that extended from about RM 253 downstream to near Tweed Creek (RM 244.5). In 2018, the U.S. Geological Survey (USGS) Idaho Water Science Center completed the remaining portion of the reservoir from RM 244.5 downstream to Libby Dam (RM 219.9). The MBES data collected in 2016 and 2017... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: GPS measurement, Hypack, Hysweep, Kootenai, Kootenai-Pend Oreille-Spokane, All tags... Lincoln, Montana, Multibeam sonar, Pacific Northwest, United States, Upper Kootenai, bathymetry, bathymetry measurement, contouring, dam sites, digital elevation models, elevation, erosion, gaging stations, geospatial analysis, geospatial datasets, inlandWaters, land surveying, lidar, location, reference locations, reservoirs, sedimentation, spatial analysis, territorial waters, topographic maps, topography, Fewer tags Kootenai River Substrate Enhancement Pilot Projects near Bonners Ferry, ID (ver. 3.0, January 2023) In 2009, the Kootenai Tribe of Idaho released and implemented the Kootenai River Habitat Restoration Master Plan. This plan aimed to restore, enhance, and maintain the Kootenai River habitat and landscape to support and sustain habitat conditions for aquatic species and animal populations. In support of these restoration efforts, the U.S. Geological Survey, in cooperation with the Kootenai Tribe of Idaho, conducted high-resolution multibeam echosounder bathymetric surveys, velocity surveys, and collected images of substrate in the Lower Meander Reach (RM 143 - 145.5) and Straight Reach (RM 151 - 152). This data release contains bathymetry, velocity, and substrate data from surveys performed on the Kootenai River... Categories: Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: ASCII, Bathymetry, Bonners Ferry, Doppler, Geology, All tags... ID, Idaho, Kootenai River, Multibeam, U.S. Geological Survey, USA, USGS, USGS Science Data Catalog (SDC), Water Depth, XYZ, bathymetry, economy, elevation, environment, geoscientificInformation, habitat, imageryBaseMapsEarthCover, inlandWaters, inlandWaters, location, restoration, Fewer tags Bathymetric and Topographic Surveys at Select Alaska Highway Bridges, 2023 In July 2023, the U.S. Geological Survey Alaska Science Center (USGS ASC) and the USGS Idaho Water Science Center (IDWSC), in cooperation with Alaska Department of Transportation and Public Facilities (AKDOT & PF), completed bathymetric and topographic surveys at four highway bridge structures using multibeam bathymetry and boat-mounted Light Detection and Ranging (LiDAR). The National Bridge Inventory structure number 524 on the Tanana River near Big Delta, AK is located on Alaska State Route 2 (commonly referred to as the Richardson Highway). Structure number 201 on the Tanana River near Nenana, AK is located on Alaska State Route 3 (commonly referred to as the Parks Highway). Structure number 254 on the Susitna... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: AK, Alaska, Bathymetry, Butte, Copper River, All tags... Cordova, Geomorphology, Hydrology, Hypack, Hysweep, Knik River, Sedimentology, USA, USGS, USGS Science Data Catalog (SDC), Water Resources, bathymetry, bathymetry data, elevation, erosion, geomorpholgy, hydrographic dataset, hydrology, inlandWaters, multibeam, multibeam sonar, scour, topography, Fewer tags Lake Koocanusa Digital Elevation Model (DEM), Lincoln County, Montana In 2016, the U.S. Army Corps of Engineers (USACE) started collecting high-resolution multibeam echosounder (MBES) data on Lake Koocanusa. The survey originated near the International Boundary (River Mile (RM) 271.0) and extended down the reservoir, hereinafter referred to as downstream, about 1.4 miles downstream of the Montana 37 Highway Bridge near Boulder Creek (about RM 253). USACE continued the survey in 2017, completing a reach that extended from about RM 253 downstream to near Tweed Creek (RM 244.5). In 2018, the U.S. Geological Survey (USGS) Idaho Water Science Center completed the remaining portion of the reservoir from RM 244.5 downstream to Libby Dam (RM 219.9). The MBES data collected in 2016 and 2017... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Raster; Tags: GPS measurement, Hypack, Hysweep, Kootenai, Kootenai-Pend Oreille-Spokane, All tags... Lincoln, Montana, Multibeam sonar, Pacific Northwest, United States, Upper Kootenai, bathymetry, bathymetry measurement, contouring, dam sites, digital elevation models, elevation, erosion, gaging stations, geospatial analysis, geospatial datasets, inlandWaters, land surveying, lidar, location, reference locations, reservoirs, sedimentation, spatial analysis, territorial waters, topographic maps, topography, Fewer tags Mores Creek Arm Bathymetric Survey, Lucky Peak Lake, Boise County, Idaho, May 11 - 13, 2021 In 2004, about 90 migrating elk drowned after attempting to cross thin ice on the Mores Creek arm of Lucky Peak Lake upstream of the Highway 21 bridge. To better understand the depths over a range of reservoir pool elevations in the Mores Creek Arm, the U.S. Geological Survey, in cooperation with the Lucky Peak Power Plant Project, conducted high-resolution multibeam echosounder (MBES) bathymetric surveys on the Mores Creek arm on Lucky Peak Lake. The MBES data will assist reservoir managers and wildlife biologists with regulating reservoir water surface elevations (WSE) to support successful big game migration across Mores Creek on Lucky Peak Lake. Data collection provided nearly 100 percent coverage of bed elevations... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Boise, GPS measurement, Geomorphology, Hydrology, Hypack, All tags... Hysweep, ID, Idaho, Idaho, Lucky Peak Lake, Lucky Peak Lake, Mores Creek, Mores Creek, Multibeam sonar, Pacific Northwest, Remote Sensing, USA, USGS Science Data Catalog (SDC), United States, Water Resources, Wildlife Biology, bathymetry, bathymetry measurement, contouring, dam sites, digital elevation models, elevation, erosion, gaging stations, geospatial analysis, geospatial datasets, inlandWaters, land surveying, location, reference locations, reservoirs, sedimentation, spatial analysis, territorial waters, topographic maps, topography, Fewer tags Mores Creek Arm Bathymetric Survey - Elevation DEM, Lucky Peak Lake, Boise County, Idaho, May 11 - 13, 2021 In 2004, about 90 migrating elk drowned after attempting to cross thin ice on the Mores Creek arm of Lucky Peak Lake upstream of the Highway 21 bridge. To better understand the depths over a range of reservoir pool elevations in the Mores Creek Arm, the U.S. Geological Survey, in cooperation with the Lucky Peak Power Plant Project, conducted high-resolution multibeam echosounder (MBES) bathymetric surveys on the Mores Creek arm on Lucky Peak Lake. The MBES data will assist reservoir managers and wildlife biologists with regulating reservoir water surface elevations (WSE) to support successful big game migration across Mores Creek on Lucky Peak Lake. Data collection provided nearly 100 percent coverage of bed elevations... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Raster; Tags: Boise, GPS measurement, Hypack, Hysweep, ID, All tags... Idaho, Idaho, Lucky Peak Lake, Lucky Peak Lake, Mores Creek, Mores Creek, Multibeam sonar, Pacific Northwest, USA, United States, bathymetry, bathymetry measurement, contouring, dam sites, digital elevation models, elevation, erosion, gaging stations, geospatial analysis, geospatial datasets, inlandWaters, land surveying, location, reference locations, reservoirs, sedimentation, spatial analysis, territorial waters, topographic maps, topography, Fewer tags Acoustic Doppler Current profiler (ADCP) field measurements of flow velocity and discharge from the Middle Channel of the St. Clair River delta, Michigan, collected May 2-4, 2022 Field measurements of flow velocity and discharge were acquired from the Middle Channel of the St. Clair River delta, Michigan, May 2-4, 2022. The velocity and discharge measurements included in this data release were obtained using a SonTek M9 acoustic Doppler current profiler (ADCP) deployed from a boat with an outboard motor. River Surveyor Live software version 4.1. was used to acquire and store the ADCP files. The ADCP data were collected along 8 transects spanning the width of the Middle Channel; two passes across the channel were made at each transect. This data release provides text files derived from the raw ADCP data files using the Velocity Mapping Toolbox (VMT) software version 4.09. Text files with... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service Copper River and Knik River Bathymetric Surveys at Select Alaska Highway Bridges near Flag Point and Butte, Alaska, 2020 In 2020, the Alaska Science Center and the Idaho Water Science Center conducted bathymetric surveys at three highway bridge structures. The bridge structures (NBI 331 and 1187) at Flag Point near Cordova, AK are located on Alaska State Route 10 (commonly referred to as the Copper River Highway). Bridge structure NBI 539 on the Knik River is located on the Old Glenn Hwy near Butte, AK. These bathymetry data generally include complete coverage for upstream and downstream channels, except for extreme shallow areas along banks, where structures limited boat access, or where data was removed during post-processing. Bridges 1187, 331, and 539 are scour-critical bridges, and 1187 and 539 are part of the Alaska Science... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: AK, ASCII, Alaska, Bathymetry, Butte, All tags... Copper River, Cordova, Geology, Geomorphology, Hydrology, Hypack, Hysweep, Knik River, Multibeam, Sedimentology, U.S. Geological Survey, USA, USGS, USGS Science Data Catalog (SDC), Water Depth, Water Resources, XYZ, elevation, inlandWaters, inlandWaters, swath bathymetry, topography, Fewer tags Kootenai River Baseline Bathymetry near Bonners Ferry, ID, 2009-2022 In 2009, the Kootenai Tribe of Idaho released and implemented the Kootenai River Habitat Restoration Master Plan. This plan aimed to restore, enhance, and maintain the Kootenai River habitat and landscape to support and sustain habitat conditions for aquatic species and animal populations. In support of these restoration efforts, the U.S. Geological Survey, in cooperation with the Kootenai Tribe of Idaho, conducted high-resolution multibeam echosounder bathymetric surveys as a baseline bathymetric monitoring survey on the Kootenai River near Bonners Ferry, Idaho. Three channel patterns or reaches exist in the study area: braided, meander, and a transitional zone connecting the braided and meander reaches. Bathymetric... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: ASCII, Bathymetry, Bonners Ferry, Geology, Hypack, All tags... Hysweep, ID, Idaho, Kootenai River, Multibeam, U.S. Geological Survey, USA, USGS, Water Depth, XYZ, elevation, inlandWaters, inlandWaters, swath bathymetry, topography, Fewer tags U.S. Geological Survey and U.S. Army Corps of Engineers Bathymetric Survey of Lake Koocanusa, Lincoln County, Montana, 2016-2018 In 2016, the U.S. Army Corps of Engineers (USACE) started collecting high-resolution multibeam echosounder (MBES) data on Lake Koocanusa. The survey originated near the International Boundary (River Mile (RM) 271.0) and extended down the reservoir, hereinafter referred to as downstream, about 1.4 miles downstream of the Montana 37 Highway Bridge near Boulder Creek (about RM 253). USACE continued the survey in 2017, completing a reach that extended from about RM 253 downstream to near Tweed Creek (RM 244.5). In 2018, the U.S. Geological Survey (USGS) Idaho Water Science Center completed the remaining portion of the reservoir from RM 244.5 downstream to Libby Dam (RM 219.9). The MBES data collected in 2016 and 2017... Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: GPS measurement, Hypack, Hysweep, Kootenai, Kootenai-Pend Oreille-Spokane, All tags... Lincoln, Montana, Pacific Northwest, USGS Science Data Catalog (SDC), United States, Upper Kootenai, bathymetry, bathymetry measurement, contouring, dam sites, digital elevation models, elevation, erosion, gaging stations, geospatial analysis, geospatial datasets, inlandWaters, land surveying, lidar, location, multibeam sonar, reference locations, reservoirs, sedimentation, spatial analysis, territorial waters, topographic maps, topography, Fewer tags American Falls Reservoir Bathymetry near River Mile 713 to 714, Power County, Idaho, 2019 The USGS, in cooperation with the U.S. Bureau of Reclamation, surveyed the bathymetry within an area of about 500 acres of American Falls Reservoir between River Miles 713 and 714 during the week of August 6-8, 2019. The bathymetric survey provided high resolution detail of a proposed treatment area for an aeration system that is being developed to support water quality during the American Falls spillway concrete repair project and possibly thereafter. The Water Quality Restoration Plan detailing this effort is an appendix of the of the Final Environmental Assessment (EA) in conjunction with the National Environmental Policy Act (NEPA) compliance process. Categories: Data; Types: Downloadable, GeoTIFF, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Raster; Tags: ASCII, American Falls, American Falls Reservoir, Bathymetry, Environmental Health, All tags... Geology, Hydrology, Hypack, Hysweep, ID, Idaho, Limnology, Sedimentology, U.S. Geological Survey, USA, USGS, USGS Science Data Catalog (SDC), Water Depth, Water Quality, Water Resources, XYZ, biota, elevation, inlandWaters, multibeam sonar, swath bathymetry, topography, Fewer tags Kootenai River Habitat Restoration Project Bathymetric Surveys near Bonners Ferry, ID (ver 4.0, January 2023) In 2009, the Kootenai Tribe of Idaho released and implemented the Kootenai River Habitat Restoration Master Plan. This plan aimed to restore, enhance, and maintain the Kootenai River habitat and landscape to support and sustain habitat conditions for aquatic species and animal populations. In support of these restoration efforts, the U.S. Geological Survey, in cooperation with the Kootenai Tribe of Idaho, conducted high-resolution multibeam echosounder bathymetric surveys as a baseline bathymetric monitoring survey on the Kootenai River near Bonners Ferry, Idaho. Three channel patterns or reaches exist in the study area—braided, meander, and a transitional zone connecting the braided and meander reaches. Bathymetric... Categories: Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: ASCII, Bathymetry, Bonners Ferry, Geology, Hypack, All tags... Hysweep, ID, Idaho, Kootenai River, Multibeam, U.S. Geological Survey, USA, USGS, USGS Science Data Catalog (SDC), Water Depth, XYZ, elevation, inlandWaters, inlandWaters, swath bathymetry, topography, Fewer tags Hydrographic Surveys collected to monitor fish spawning reef placements, Detroit and St. Clair Rivers, Michigan, September 13-16, 2021 The U.S Geological Survey conducted hydrographic surveys from September 13-16, 2021 to monitor fish spawning substrate placements (reefs) in the Detroit and St. Clair Rivers, Michigan. A multibeam echosounder was used from the Great Lakes Science Center research vessel Cisco to collect the hydrographic data. These data were used to generate maps of river bottom topography in locations where spawning substrates have been placed. The reefs surveyed in the Detroit River included: Fort Wayne, New (East) Belle Isle, Belle Isle, and Grassy Island. The reefs surveyed in the St. Clair River in 2021 included: Middle Channel, Pointe Aux Chenes, and Harts Light. The data for each study reach were produced in LAS format supported... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service Hydrographic surveys collected to monitor fish spawning reef placements, Detroit and St. Clair Rivers, Michigan, May 2 - 5, 2022 The U.S Geological Survey conducted hydrographic surveys from May 2-5, 2022 to monitor fish spawning substrate placements (reefs) in the Detroit and St. Clair Rivers, Michigan. A multibeam echosounder was used from the Great Lakes Science Center research vessel Desmid in to collect the hydrographic data. These data were used to generate maps of river bottom topography in locations where spawning substrates have been placed. The reefs surveyed in the Detroit River included: Fort Wayne, New (East) Belle Isle, Belle Isle, Fighting Island, and Grassy Island. The reefs surveyed in the St. Clair River in 2022 included: Middle Channel, Pointe Aux Chenes, and Harts Light. The data for each study reach were produced in LAS... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service 1 2 »