11. The New Madrid Seismic Zone lies at the northern end of the embayment . 12. Great failed arm " of the main rift called the Nipigon Embayment . 13. The highest point is just north of this embayment at above sea level. 14. Bledsoe Creek State Park spans most of the northwest shore of this embayment . 15. Both harbors are embayments of Long Island Sound. 16. A recreation area along the Mill Creek embayment has also been named for Loyston. 17. As already mentioned, this scarp overlooks the coastal plain of the Rio Grande embayment . 18. West Tennessee is located within the Mississippi Embayment , part of the Gulf Coastal Plain. 19. The island is bordered by two large piedmont embayments : Otway Sound and Skyring Sound. 20. It can also be found throughout the Mississippi Embayment north to Kentucky, and Missouri.