Ian McHarg was the original co-designer of The Woodlands, Texas, an unincorporated community in Montgomery County, Texas. This community was developed from timberland located thirty miles north of Houston, by George P. Mitchell, who hired McHarg to consult on the project and, as a result, the original plans featured many of his unique designs. Due in part to concerns of flooding, McHarg identified the water system as the most critical aspect of the site. The natural drainage system the firm designed was successful at limiting the runoff with which McHarg was concerned, and was also much cheaper than a conventional drainage system would have been. In 1998, in his collection "To Heal the Earth", McHarg wrote that the Woodlands is one of the best examples of his ideals. Most of the actual work was done by a large team while McHarg was still there, and by many others in the years since he left. The Woodlands continues to be a successful ecological community even today.