Uncategorized Corey Stringer Subhead: Mammoth Training Center Address: 410 W Market St Rockport TX 78382 United States Phone: 3614636682 Website: Loading... No Records Found Sorry, no records were found. Please adjust your search criteria and try again. Maps failed to load Sorry, unable to load the Maps API. Mammoth Training Center is a gym based in Rockport, TX. We are focused on building strength through powerlifting and Strongman, and cardio through kickboxing and mma.