This layer was created as part of a Flood Inundation Map Library developed for display within the NOAA National Weather Service's Advanced Hydrologic Prediction Services (AHPS), the SRBC Susquehanna Inundation Map Viewer (SIMV), and the USGS Flood Inundation Mapper (FIM). This data represents the potential flood extent for a stage of 11-ft to 37-ft as recorded at the Harrisburg (Susquehanna River at Harrisburg, PA; USGS ID 01570500) river gage. This data is part of a series of inundation layers meant to correlate observations and forecasts from the river gage with a visual representation of the areas impacted by high water. The data set of flood inundation areas was created from flood scenarios generated by HEC-RAS runs provided by USACE-Baltimore and LiDAR data from PASDA processed to extract bare earth points. A shapefile of inundation area for each stage was created and subsequently merged to form continuous datasets for the main-stem Susquehanna River and backwater areas on its tributaries.This data was developed to assist the public and emergency officials with planning and response to high water episodes at or near a defined National Weather Service river forecast point.

Feature layer of BicyclePA Routes for use with PennDOT's PennShare and OpenData applicationsBicyclePA routes were designed by experienced bicyclists to provide those who wish to traverse the state by bicycle with a guide to some of the Commonwealth’s highways and rail-trails. Some of these routes contain bike lanes or other facilities designed specifically for bicyclists traveling within the four corners of the Commonwealth. Every bicyclist is responsible for his or her personal safety and welfare and for remaining alert and mindful of conditions on the roads or trails. There are 10 designated BicyclePA routes- A, E, G, J, JS, L, S, V, Y, and Z. A: BicyclePA Route A runs north/south from Presque Isle State Park on Lake Erie to the West Virginia border just north of Morgantown in Greene County. E: BicyclePA Route E runs north/south from the New Jersey border along the Delaware River in Morrisville, PA to the Delaware border in Marcus Hook, PA. G: BicyclePA Route G runs north/south from the New York border in Lawrenceville, Tioga County to the Maryland border in Bedford County. J: BicyclePA Route J runs north/south from the New York border in Sayre, Bradford County to the Maryland border in two places: New Freedom, York County and south of Gettysburg in Adams County. JS: BicyclePA Route JS runs east/west between Seven Valleys in York County and Gettysburg in Adams County. L: BicyclePA Route L runs north/south from the New York border south of Binghamton in Susquehanna County to the Delaware border north of Wilmington in Chester County. S: BicyclePA Route S runs east/west from the New Jersey border at the Washington Crossing Military Park on the Delaware River in Bucks County to the West Virginia border east of Wheeling in Washington County. V: BicyclePA Route V runs east/west from the New Jersey border in Portland (Northampton County) to the Ohio border in Lawrence County, roughly parallel with Interstate 80. Y: BicyclePA Route Y runs east/west from the New York border in Pike County to the Ohio border in Crawford County. Z: BicyclePA Route Z runs east/west along the shore of Lake Erie from the New York border to the Ohio border in Erie County. Send your bicycle/pedestrian questions to ra-pdbikepedpa@pa.gov For contact information for your local bike/ped coordinator, please visit the Bike/Ped Coordinators Contact Info Web Page To view the Pennsylvania Bicycle Driver’s Manual, click here.

Pennsylvania Watershed Regions shown in 7 distinct regions: DelawareErieGeneseeOhioPotomacUpper/Middle SusquehannaLower Susquehanna

This map contains the scan of an aerial image donated to the Donald W. Hamer Center for Maps and Geospatial Information at Penn State University by the PA state geological library from the Susquehanna River Basin Commission. Please contact ul-maps@lists.psu.edu for more information.

This map contains the scan of an aerial image donated to the Donald W. Hamer Center for Maps and Geospatial Information at Penn State University by the PA state geological library from the Susquehanna River Basin Commission. Please contact ul-maps@lists.psu.edu for more information.