Skip to main content
U.S. flag

An official website of the United States government

Before and After Images

The USGS has science based work that often requires the comparison of two geographic areas over time. Though scientific data is critical to understanding changes over time, visually seeing those changes is a powerful tool in support of that data. 

Filter Total Items: 325
TNMCorps Mapping Challenge: Cemeteries in Western TN
link
TNMCorps Mapping Challenge: Cemeteries in Western TN as of 11/04/21
TNMCorps Mapping Challenge: City/Town Halls in TX
link
TNMCorps Mapping Challenge: City/Town Halls in TX as of 11/04/21
TNMCorps Mapping Challenge: Cemeteries in Western TN 10/14/2021
link
TNMCorps Mapping Challenge: Edits to Cemeteries in Western TN as of 10/19/21
Color webcam photo of lava lake
link
Recent changes at Kīlauea volcano - October 7, 2021
Map showing migration routes superimposed on a wildfire smoke map, with dense smoke covering the northwestern states
link
Tule Goose Migration Tracks, 2019 and 2020
TNMCorps Mapping Challenge: Cemeteries in Western TN
link
TNMCorps Mapping Challenge: Cemeteries in Western TN as of 10/14/21
TNMCorps Mapping Challenge: City/Town Halls in TX 10/7/21
link
TNMCorps Mapping Challenge: City/Town Halls in TX as of 10/14/21
TNMCorps Mapping Challenge: Law Enforcement in KS & OK
link
TNMCorps Mapping Challenge: Law Enforcement in KS & OK as of 10/14/21
Color photograph of active lava lake
link
Recent changes at Kīlauea volcano
Color photograph of active lava lake
link
Recent changes at Kīlauea volcano - October 4, 2021
map with hexagon grid overlay depicting study areas and points depicting barred owl sightings in 2015
link
Interactive before/after image of barred owl sightings
TNMCorps Mapping Challenge: Cemeteries in Western TN
link
TNMCorps Mapping Challenge: Cemeteries in Western TN as of 10/07/21
TNMCorps Mapping Challenge: City/Town Halls in TX
link
TNMCorps Mapping Challenge: City/Town Halls in TX as of 10/07/21
TNMCorps Mapping Challenge: Law Enforcement in KS & OK
link
TNMCorps Mapping Challenge: Law Enforcement in KS & OK as of 10/07/21
TNMCorps Mapping Challenge: City/Town Halls in TX
link
TNMCorps Mapping Challenge: City/Town Halls in TX as of 09/23/21
TNMCorps Mapping Challenge: Law Enforcement in KS & OK
link
TNMCorps Mapping Challenge: Law Enforcement in KS & OK as of 09/23/21
Color webcam image
link
New eruption at Kīlauea Volcano - September 29, 2021
TNMCorps Mapping Challenge: Schools in CO
link
TNMCorps Mapping Challenge: Schools in CO NoHistory as of 09/30/21
TNMCorps Mapping Challenge: City/Town Halls in TX
link
TNMCorps Mapping Challenge: City/Town Halls in TX as of 09/30/21
TNMCorps Mapping Challenge: Law Enforcement in KS & OK
link
TNMCorps Mapping Challenge: Law Enforcement in KS & OK as of 09/30/21
TNMCorps Mapping Challenge: Schools in CO NoHistory
link
TNMCorps Mapping Challenge: Schools in CO NoHistory as of 09/09/21