yes, there are multiple places, and someone here had a name for the portal. and knew how they were related; ley lines perhaps??

story was similar to this, that the portal was like a door to heaven;

"Darrell Red Cloud, the great-great-great-grandson of Lakota Chief Red Cloud, told the story of how the Black Hills have been considered a sacred monument as the point of creation for all life on the planet to the indigenous people of this country for thousands of years"

https://www.bhpioneer.com/local_news/president-trump-delivers-message-at-mt-rushmore/article_6140a6c6-bfb8-11ea-8b09-6b78fa83d14e.html