TimberSentry

What it does

TimberSentry turns public Landsat and NAIP satellite archives into a property-specific historical report. Draw your land's boundary, and see quality-screened imagery from 1984 to today — clearing, regrowth, and canopy change, organized into a source-cited PDF, MP4 timelapse, and GIS-ready package. Built for land buyers, foresters, and rural real estate due diligence. Free to search; reports start at $29.

Generate historical satellite land change reports for $49. Preview a property-specific Landsat/NAIP web report, print or save it as PDF, and receive an MP4 and GIS-ready ZIP. No subscriptions.

TimberSentry saves hours of finding, screening, clipping, comparing, and organizing historical imagery—so you can review decades of property history without doing the manual GIS work or hiring a GIS consultant. Choose one way to mark the property. We will validate the area before searching the imagery catalog. KML and KMZ polygon boundaries up to 5 MB. Non-polygon placemarks are ignored. Historical catalog from 1982 to present. Supported area: more than 250 acres and up to 5,000 acres. No account or payment required. Coverage varies by location and source. Your search found public imagery for this property. Review the recommended season below, open the free source links, or continue…from timbersentry.com

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