Complex sentence: This geographic area stretches about north to south, and east to west, a total area of some, larger than all of New England, and covering all or part of thirty-three Texas counties and four New Mexico counties.
Split into simpler sentences: This geographic area stretches about north to south, and east to west, a total area of some, larger than all of New England. It covers all or part of thirty-three Texas counties and four New Mexico counties.