An island range is a term used to describe a mountain range that exists in total or almost total isolation from a larger chain of ranges and sub-ranges. From a distance on the plains, these ranges appear as "islands" of higher ground. And so, often described as an island of mountainous land because they exist in the "sea" of lower elevation and flatter prairie country, many examples are found in the northern Rocky Mountains of the United States. Island ranges include the Big Snowy Mountains of east-central Montana and the Crazy Mountains of south-central Montana. Island ranges, due to their isolation, often have animal and/or plant species or subspecies found nowhere else.

Island biogeography Sky island

Danny Lipford (born May 29, 1957) is an American contractor and television personality known to audiences as Host and Executive Producer of the nationally-syndicated home improvement show Today's Homeowner with Danny Lipford, syndicated radio show Homefront, and for his appearances on The Weather Channel, and CBS's The Early Show.

Lipford was born in Marianna, Florida. At the age of 9, Danny got the home improvement bug and bought his first tool, a jigsaw from a mail order catalogue. He moved to Mobile, Alabama in 1975 to attend the University of South Alabama but his side job as a handyman turned into a full-time passion. In 1978, he started his remodeling business, Lipford Construction, which celebrated its 30th anniversary in 2008.

In 1998, Lipford was hosting a cable show called Remodeling Today in Mobile, Alabama when he was approached by the Times-Mirror magazine Today's Homeowner to expand his show nationally. The TV show was retooled and renamed Today's Homeowner with Danny Lipford and jumped from 28 to 100 markets in six months. Lipford also contributed a regular monthly column to the magazine.