The Office on the Disabled is compiling this ongoing list of popular Saint Louis destinations in order to be a resource for people with disabilities in making informed choices whether they are visitors or residents of Saint Louis. Please note that the current information focuses on physical accessibility.
plural abysses. Learner's definition of ABYSS. [count] : a hole so deep or a space so great that it cannot be measured. the ocean's abysses. I stood at the edge of the cliff and gazed down into the yawning/gaping abyss. [=chasm]
plains ocean sediment deep. Abyssal plains are the vast, flat, sediment-covered areas of the deep ocean floor. They are the flattest, most featureless areas on the Earth, and have a slope of less than one foot of elevation difference for each thousand feet of distance.