Sinkhole Mapping Act of 2025

This bill tells the U.S. Geological Survey (USGS) to study what causes sinkholes and to make maps that show where sinkholes are more likely to form. The maps must use 3D elevation data and be shared on a public website so local planners and emergency managers can use them. The USGS must check the maps at least every five years and update them when needed. All of this depends on money being approved by Congress first .

Key points:

• Who is affected: Communities in areas with sinkhole risk; local planners and emergency managers who need better hazard info .
• What changes: USGS will study sinkhole causes (like big storms, long droughts, and aquifer depletion), create detailed risk maps using 3D data, and run a public website to share them .
• When: The program begins when funded; maps are reviewed at least every five years and updated as needed.