On May 9, 2017, Snelling, with the help of Alliance Defending Freedom filed a lawsuit against the U.S. Interior Department and the Grand Canyon National Park authorities for denying him a permit to collect rock samples at the Grand Canyon, which Snelling alleged was due to his belief in a young earth. However, facing the lawsuit, the National Park authorities relented in late-June 2017 and issued Snelling a permit.
- Christian geologist sues Grand Canyon for religious discrimination. Fox News. May 30, 2017. Retrieved July 3, 2017.
- Blackford, Linda (May 10, 2017). Creation Museum researcher alleges religious discrimination in Grand Canyon. Lexington Herald-Leader. Retrieved July 3, 2017.
- Richardson, Bradford (May 16, 2017). Geologist’s lawsuit claims discrimination at Grand Canyon over biblical beliefs. The Washington Times. Retrieved July 3, 2017.
- Stern, Ray (June 29, 2017). Grand Canyon Allows Creationist's Study; Noah-Believing Geologist Drops Lawsuit. Phoenix New Times. Retrieved July 3, 2017.
- Wartman, Scott (June 29, 2017). NKY Notebook: Creation Museum researcher cleared to study Grand Canyon; Brent Spence traffic not a 'hell'. The Cincinnati Enquirer. Retrieved July 3, 2017.
- Weston, Pheobe (June 30, 2017). Creationist who sued the Grand Canyon for religious discrimination, after being denied the right to remove 60 rocks, has emerged victorious after authorities cave into his request. Daily Mail. Retrieved July 3, 2017.
- Gottry, James (June 30, 2017). After Barring Geologist From Grand Canyon Because He’s A Christian, Park Service Relents. The Federalist. Retrieved July 3, 2017.
- Grand Canyon Scientist/Creationist Receives Permits. Answers in Genesis. Retrieved July 3, 2017.
- Unruh, Bob (June 30, 2017). Christian geologist drops lawsuit after Park Service backs down. WND. Retrieved July 3, 2017.