The objective of this investigation was to respond to a request for regional assistance for a comprehensive delineation of wetland habitats subject to jurisdiction under Section 404 of the Clean Water Act and all wetlands subject to National Park Service (NPS) procedures for implementing Director’s Order #77–1: Wetland Protection within the floodplain of Blow-Me-Down-Creek upstream and within the immediate area surrounding Blow-Me-Down-Dam on Saint Gaudens National Historic Site (SAGA) lands. This work utilized the U.S Army Corps of Engineers (USACE) Interim Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Northeast and Northcentral Region (January 2012) as the primary methodology for making wetland determinations in the field. A total of 3 palustrine wetlands encompassing 7.23 acres of land were identified and delineated from 22 -25 September 2014 within the study area (Fig. 1). Observed wetland habitats were primarily a combination of palustrine, emergent, persistent, habitats (PEM1) and scrub-shrub (PSS) habitats that exhibited extensive soil saturation at the time of the investigation. All of the identified and mapped palustrine wetland systems meet both the U.S. Army Corps of Engineers criteria and the Cowardin et al. (1979) definitions of wetland habitat. No new riverine wetland systems were identified and mapped over the course of this investigation.

The objective of this investigation was to respond to a request for regional assistance for a comprehensive delineation of wetland habitats subject to jurisdiction under Section 404 of the Clean Water Act and all wetlands subject to National Park Service (NPS) procedures for implementing Director’s Order #77–1: Wetland Protection at three wetlands sites located on Thompson, Grape, and Peddocks Islands within Boston Harbor Islands National Park Area (BOHA). This work utilized the U.S Army Corps of Engineers (USACE) Interim Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Northeast and Northcentral Region (January 2012) as the primary methodology for making wetland determinations in the field. A total of 3 palustrine wetlands encompassing 4.50 acres of land were identified and delineated from 14-15 October 2014 within the three islands area (Fig. 1). Observed wetland ecosystems were primarily the following habitats: palustrine, emergent, persistent, (PEM1); palustrine forested, broad leaved deciduous (PFO1); palustrine, unconsolidated bottom, mud (PUB3) These sites were specifically chosen by National Park Service (NPS) and US Forest Service Scientists (USFS) staff as research locations for an invasive plant removal study and this work was performed to identify the regulatory wetland boundaries and facilitate the acquisition of any compliance documents under Section 404 and DO #77.1 purview. All of the identified and mapped palustrine wetland systems encountered during the October 2014 investigation met both the U.S. Army Corps of Engineers criteria and the Cowardin et al. (1979) definitions of wetland habitat. No new riverine wetland systems were identified and mapped over the course of this investigation.

The objective of this investigation was to respond to a request for regional assistance for a comprehensive delineation of wetlands and associated waterways subject to jurisdiction under Section 404 of the Clean Water Act and all wetlands subject to National Park Service (NPS) procedures for implementing Director’s Order #77–1: Wetland Protection within the summit area of Allegheny Portage Railroad National Historic Site (ALPO). This work utilized the U.S Army Corps of Engineers (USACE) Interim Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Eastern Mountains and Piedmont Region as the primary methodology for making wetland determinations in the field. A total of 7 palustrine wetlands encompassing 4.43 acres of land were identified and delineated from 17 -20 September 2012 within the ALPO summit area (see associated geodatabase). The majority of the wetland habitats observed within the ALPO study area were palustrine, emergent, persistent, habitats (PEM1) with varying degrees of groundwater influence. None of the observed wetland ecosystems meet the PA Title 25, Chapter 105 Exceptional Value (EV) wetland designation standard. However, all of the identified and mapped palustrine wetland systems meet both the U.S. Army Corps of Engineers criteria and the Cowardin et al. (1979) definitions of wetland habitat. No new riverine wetland systems were identified and mapped over the course of this investigation; however, five seeps and their associated drainages were identified in close proximity to one of the proposed PADEP borehole sites.

The objective of this investigation was to respond to a request for regional assistance for a comprehensive delineation of wetlands and associated waterways subject to jurisdiction under Section 404 of the Clean Water Act and all wetlands subject to National Park Service (NPS) procedures for implementing Director’s Order #77–1: Wetland Protection within the summit area of Allegheny Portage Railroad National Historic Site (ALPO). This work utilized the U.S Army Corps of Engineers (USACE) Interim Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Eastern Mountains and Piedmont Region as the primary methodology for making wetland determinations in the field. A total of 7 palustrine wetlands encompassing 4.43 acres of land were identified and delineated from 17 -20 September 2012 within the ALPO summit area (see associated geodatabase). The majority of the wetland habitats observed within the ALPO study area were palustrine, emergent, persistent, habitats (PEM1) with varying degrees of groundwater influence. None of the observed wetland ecosystems meet the PA Title 25, Chapter 105 Exceptional Value (EV) wetland designation standard. However, all of the identified and mapped palustrine wetland systems meet both the U.S. Army Corps of Engineers criteria and the Cowardin et al. (1979) definitions of wetland habitat. No new riverine wetland systems were identified and mapped over the course of this investigation; however, five seeps and their associated drainages were identified in close proximity to one of the proposed PADEP borehole sites.

This dataset contains boundary polygons from 59 wetlands, that were monitored as part of the U.S. Geological Survey (USGS) Amphibian Research and Monitoring Initiative (ARMI) from Saint Marks National Wildlife Refuge (SMNWR). These sites covered a range of sizes, shapes, topographic and vegetative characteristics that were deemed to be representative of wetlands within the study area. Ground-based surveys of wetland perimeters were made using a Trimble R8 Real Time Kinematic Global Positioning System (RTK-GPS). Surveys generally followed the lowest extent of saw palmetto (Serenoa repens), which is a reliable indicator of the upper limits (elevation) of sustained inundation. In instances where palmetto was absent, margins were identified based on the lower limits of gallberry (Ilex sp.) and/or the upper extent of titi (Cyrilla/Cliftonia). These species occupied similar hydrologic and elevation zones as saw palmetto and, therefore, considered to also be reliable indicators of a wetland’s edge. GPS points were collected along this vegetative margin to represent the size and general shape of each wetland. In cases where dense vegetation prevented surveying the complete margin, we used elevation contours to connect distant points when digitizing perimeters. For a subset of wetlands that were not surveyed in the field on screen digitizing was used to construct the boundaries. When using this latter approach multiple layers were used to help identify the boundary including the national wetlands inventory, aerial imagery, and a lidar derived digital elevation model. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

This dataset contains boundary polygons from 59 wetlands, that were monitored as part of the U.S. Geological Survey (USGS) Amphibian Research and Monitoring Initiative (ARMI) from Saint Marks National Wildlife Refuge (SMNWR). These sites covered a range of sizes, shapes, topographic and vegetative characteristics that were deemed to be representative of wetlands within the study area. Ground-based surveys of wetland perimeters were made using a Trimble R8 Real Time Kinematic Global Positioning System (RTK-GPS). Surveys generally followed the lowest extent of saw palmetto (Serenoa repens), which is a reliable indicator of the upper limits (elevation) of sustained inundation. In instances where palmetto was absent, margins were identified based on the lower limits of gallberry (Ilex sp.) and/or the upper extent of titi (Cyrilla/Cliftonia). These species occupied similar hydrologic and elevation zones as saw palmetto and, therefore, considered to also be reliable indicators of a wetland’s edge. GPS points were collected along this vegetative margin to represent the size and general shape of each wetland. In cases where dense vegetation prevented surveying the complete margin, we used elevation contours to connect distant points when digitizing perimeters. For a subset of wetlands that were not surveyed in the field on screen digitizing was used to construct the boundaries. When using this latter approach multiple layers were used to help identify the boundary including the national wetlands inventory, aerial imagery, and a lidar derived digital elevation model. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

The purpose of this project was to map the wetlands across New South Wales. Wetlands were identified using a combination of classification of spectral classes of Landsat MSS and TM imagery and ancillary wetland information to create information classes of broad wetland groups (floodplain wetlands, freshwater lakes, saline lakes, reservoirs, estuarine wetlands and coastal lagoons and lakes). The data will then be used to assess the wetland resource in each catchment. For more details refer to: Kingsford, R., Brandis, K., Thomas, R., Crighton, P., Knowles, E. and Gale, E., 2004. Classifying landform at broad spatial scales: the distribution and conservation of wetlands in New South Wales, Australia. Marine and Freshwater Research 55, 17-31. http://dx.doi.org/10.1071/MF03075

This dataset contains the approximate location of 59 wetlands that were monitored as part of the U.S. Geological Survey (USGS) Amphibian Research and Monitoring Initiative (ARMI). Note, these were preliminary points used for locating the wetlands in the field and they may not fall directly within a wetlands boundary. The later surveying of pond boundaries provides more accurate locations. These point locations were collected with a Garmin GPSmap62 unit. The mention of firm, product, or trade names is done so for informative purposes only and does not constitute and recommendation or endorsement by the federal government.

This USGS Data Release represents geospatial and tabular data for a study investigating linkages between local terrain and wetland hydroperiod. The data release was produced in compliance with the new 'open data' requirements as way to make the scientific products associated with USGS research efforts and publications available to the public. The dataset consists of 3 separate items: 1. water level monitoring site Locations (tabular data) 2. surveyed wetland perimeters (GIS vector data) 3. water level and water temperature data for 58 select wetlands (tabular data)