May 2018
Nearly 7,000 holes drilled across the globe in collaboration with the Continental Scientific Drilling Coordination Office have been registered in SESAR. These holes now have persistent and globally unique identifiers (IGSNs) and can be linked to core samples extracted from the holes. Check them out in the SESAR² Catalog by searching Set Name/IGSN -> IGSN begins with “CDR”. These holes were registered as part of Open Core Data, an NSF-funded project that is radically improving discoverability, accessibility, citeability, preservation, and integration of data from past, current, and future drilling and coring projects.
![](https://www.geosamples.org/wp-content/uploads/2020/10/LacCoreHoles_GMA-1-uai-256x181.png)