Portals and grid work

Hello Beautiful!!   EA u did a lovely job guiding us to the portal on Maui and in that meditation asked us to go to other well known portals to help open, reopen. I was drawn to a big beautiful mountain where I live in Colorado. How do I know if this is truly a portal?  How can I work more deeply with portal energy as well as the crystalline grid of the earth to help humanity? Thank you!