“Square Tower” loop trails winds around a valley dotted with old ruins. April 26, 2014 by Matt Thomas“Square Tower” loop trails winds around a valley dotted with old ruins. Hovenweep National Monument About Matt Thomas Matt is an avid writer and explorer, who loves to showcase his home state of Colorado. His favorite place to be is right here in the Centennial State. Previous Post:Hovenweep National Monument – Dolores