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Just Released: Technical Report 21-01

Technical Report 21-01 Lamprophyre dikes of northern Idaho and northeastern Washington

Just Released: 2020 Idaho Annual Mining Review

Just Released: Technical Report 20-03, 20-04

Technical Report 20-03 Geologic Map of the Northern Part of the Leadore Quadrangle, Lemhi County, Idaho


Technical Report 20-04 Geologic Map of the Butte City 7.5' Quadrangle, Butte County, Idaho


IGS offices remain closed to walk-ins

If you need to get in touch with our staff please email, call 208-885-7991, or see our Staff Directory for more contact information. Our Sales Office is working to fill orders intermittently for delivery and pickup. Please call 208-885-7991 to place an order. If you are in immediate need of a publication, nearly all are available for free download. Topo maps are also available for free download from USGS.