GIS Department

Public Map

This map presents public GIS data for the Seneca Nation of Indians Territories. Included are layers of addressing, Allegany River pre-Kinzua dam, area restaurants, SNI administration buildings, City of Salamanca parcels, contours, road centerlines and the SNI soils survey.

Public Cemeteries Map

This map presents public GIS data for the Seneca Nation’s Public Cemeteries on the Allegany and Cattaraugus Territories. Included are layers for headstone locations and burial lots. Pictures of the headstones have been included and you are able to search by name.

Public Transportation Infrastructure Map

This map presents public GIS data for the Seneca Nation of Indians Territories. Included are Transportation Infrastructure layers for road signs (MUTCD), culverts, bridges and the Indian Reservation Roads Inventory program (IRR).

Do you live in a Flood Zone?

This map presents Federal Emergency Management Agency (FEMA), Flood Insurance Rate Maps (FIRMs). They are the source for flood hazard information produced in support of the National Flood Insurance Program (NFIP). This data is specific to the Seneca Nation of Indians Territories and will show if a structure may be located in a Flood Zone.

Seneca Strong - Activities & Resources

This map presents public GIS data for the Seneca Strong program. It provides the general public with a list of Activities and Resources provided by the outreach and recovery center.

Seneca Transit System - STS

This map presents public GIS data for the Seneca Transit System (STS), Olean Area Transit System (OATS) and other Western New York Transit Systems. Included are layers of Bus Routes and Bus Stops and links to the respective Bus Schedules. Click any route to be directed to the transit system provider’s website; they will have detailed schedules and mapping.

Watershed Resources Working Group (WRWG) Map

This Watershed Resources Working Group (WRWG) map presents public environmental GIS data related to water quality monitoring samples and soil/sediment sampling. The sampling is taking place along the Allegany River on the Allegany Territory.

Marvin “Joe” Curry Veterans Pow Wow

This map will provide information on the layout of the Pow Wow grounds. The Marvin "Joe" Curry Veterans Pow Wow is held every year at the Veterans Memorial Park in Salamanca, NY, the 3rd weekend of July. It is an annual contest Pow Wow in honor of our veterans.

Story Map - Cattaraugus Environmental Areas of Concern

This story map presents public GIS Data for the Seneca Nation of Indians Cattaraugus Territory. It includes pictures and descriptions for Environmental Areas of Concern.

SINM – Kinzua Dam Story maps

This Seneca – Iroquois National Museum (SINM) Site provides a landing page for the Kinzua Dam Story Maps, created by SNI-GIS, to show the impacts to the communities on the Seneca Nations Allegany Territory. This Site is being utilized in the SINM interactive kiosks.

Story Map - Allegany Territory Pre and Post Kinzua Dam

This story map presents public GIS Data for the Seneca Nation of Indians Allegany Territory. It includes aerial imagery from the 1960’s showing the pre Kinzua dam Allegany River location, Homestead footprints and the 1365ft Elevation Contour. You have the ability to “swipe” the 1960’s aerials from the map to compare then and now.

Story Map – Allegany Territory Kinzua Dam Removal – Onoville Community

This story map presents public GIS Data for the Seneca Nation of Indians Allegany Territory. In the 1960’s the US Army Corp of Engineers was authorized to build the Kinzua Dam for flood control for the City of Pittsburgh, Pennsylvania. Authorization of the dam project meant permanent flooding of land and destruction of homes to the Seneca people along the Allegany River. This story map shows the location of impacted homesteads in the Onoville Community.

Story Map – Allegany Territory Kinzua Dam Removal – Steamburg Community

This story map presents public GIS Data for the Seneca Nation of Indians Allegany Territory. In the 1960’s the US Army Corp of Engineers was authorized to build the Kinzua Dam for flood control for the City of Pittsburgh, Pennsylvania. Authorization of the dam project meant permanent flooding of land and destruction of homes to the Seneca people along the Allegany River. This story map shows the location of impacted homesteads in the Steamburg Community.

Story Map – Allegany Territory Kinzua Dam Removal – Cold Spring Community

This story map presents public GIS Data for the Seneca Nation of Indians Allegany Territory. In the 1960’s the US Army Corp of Engineers was authorized to build the Kinzua Dam for flood control for the City of Pittsburgh, Pennsylvania. Authorization of the dam project meant permanent flooding of land and destruction of homes to the Seneca people along the Allegany River. This story map shows the location of impacted homesteads in the Cold Spring Community.

Story Map – Allegany Territory Kinzua Dam Removal – Red House, Shongo and Jimersontown Communities

This story map presents public GIS Data for the Seneca Nation of Indians Allegany Territory. In the 1960’s the US Army Corp of Engineers was authorized to build the Kinzua Dam for flood control for the City of Pittsburgh, Pennsylvania. Authorization of the dam project meant permanent flooding of land and destruction of homes to the Seneca people along the Allegany River. This story map shows the location of impacted homesteads in the Red House, Shongo and Jimersontown Communities.

Story Map - Allegany River/Reservoir Restoration and Resiliency Project

This story map presents public GIS Data for the Seneca Nation of Indians Allegany Territory. Through funding provided by the National Fish and Wildlife Foundation, the Seneca Nation Fish and Wildlife Department created healthier habitat for aquatic species within the Allegany Reservoir. This was accomplished through restoration activities of instream habitat, hydrology and stream connectivity, as well as flood plain enhancement.

Story Map - Cattaraugus Territory – Invasive Plant Monitoring

This story map presents public GIS Data for the Seneca Nation of Indians Cattaraugus Territory. Through funding provided by the Bureau of Indian Affairs, Great Lakes Restoration Initiative – Invasive Species Program, the Seneca Nation Fish and Wildlife Department has been actively working at making positive ecological changes, that combat invasive species, promote native plant species and eliminate invasive species. This story map shows the process the Seneca Nation’s Geographic Information Services Division has utilized to assist in the collection of baseline data on invasive species.

eSpatially New York SNI-GIS Article

SNI-GIS article showcase on eSpatially New York.
Perspectives on the Geospatial Community in the Empire State.


Published March 2015.

House Number Request Form

This form is to be utilized for requesting a house number (address) on either the Allegany, Cattaraugus or Oil Spring Territories. Please fill out and submit the form back to the SNI-GIS office.