USGS scientists performing a step-injection aquifer test while drilling a bedrock borehole at the Perigo Mine site, Colorado during September 2023.
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Images intro.
![two scientists with hard hats performing testing in front of drill unit](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/photo%202_0.jpg?itok=8nPKwy2H)
Performing Aquifer Test During Borehole Drilling, Perigo Mine, Colorado
USGS scientists performing a step-injection aquifer test while drilling a bedrock borehole at the Perigo Mine site, Colorado during September 2023.
![Kaiparowits UT Drill rig site](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/KaiparowitsUT_RigPic-med.jpg?itok=T2M4BKgw)
Drilling Capabilities- Kaiparowits UT Drill rig site
Drilling Capabilities- Kaiparowits UT Drill rig site
Drilling Capabilities- Kaiparowits UT Drill rig site. This is a drill rig site in Utah.
Drilling Capabilities- Kaiparowits UT Drill rig site. This is a drill rig site in Utah.
![Aerial image of drilling oil well into Bakken Formation in North Dakota](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/Haines_Drilling%20oil%20well%20into%20Bakken%20Formation%20in%20North%20Dakota_0.jpg?itok=p9TGKxT9)
Aerial image of drilling oil well into Bakken Formation, ND
Aerial image of drilling oil well into Bakken Formation, ND
Aerial image of drilling oil well into Bakken Formation in North Dakota
Aerial image of drilling oil well into Bakken Formation in North Dakota