This book is the most up-to-date interpretation of one of the largest cliff dwellings in North America, Cliff Palace. Water seeping into Cliff Palace in late November 1995 threatened the integrity of the site. Part of the mitigation plan included architectural documentation of the most threatened areas in Courtyard Complexes M and J during the winter of 1995-96. This architectural documentation study revealed that there were 151 rooms, 75 other architectural spaces, and 21 kivas in Cliff Palace from AD 1278-1280. Only 25 of the rooms had hearths, implying that they were the only ones used as living rooms. The author thinks these were the residential quarters of a small caretaker population of 25-30 households. Other rooms and open areas may have been used by people who came from other areas and used Cliff Palace for only a short period each year. Included with this report is a full color poster map of Cliff Palace.