Lake Roxanne Ellenburg Depot NY. Great Opportunity to own an amazing 252 Acres with its own island! This beautiful and pristine setting surrounds St. Thomas Island, your very own personal island which is around 15 acres. Peace and tranquility await you to build, explore and make your very own. This property has so much to offer and would make a great escape to your own paradise. BRING YOUR FISHING POLE!! Lake frontage!!!