In the southern part of this district, between the Rito de los Frijoles and Cochiti, are the ruins of six pueblos, and a considerable number of cavate houses, the interesting Cueva Pintada (painted cave), and the famous shrines known as the “Stone Lions of Potrero de las Vacas and Potrero de los Idolos.” 2. MESA VERDE DISTRICT. In this district are the finest specimens of true cliff dwellings. They are very numerous in the cañons of Mesa Verde and along the Mancos River. Cliff Palace is justly one of the most famous works of prehistoric man in existence. Numerous pueblo and cliff ruins are distributed along the McElmo, the Yellowjacket and the Hovenweep. On the whole, this is one of the most interesting of all prehistoric districts. A portion of it is under withdrawal by the General Land Office, pending the creation of the Colorado Cliff Dwellings National Park. The intelligent interest of the people of Colorado has done much toward the preservation of these ruins. However, the entire district has suffered much from vandalism, a majority of the burial mounds having been destroyed. A national park in this region would be of great educational value. 3. ZUÑI DISTRICT. This region is rich in both historic and prehistoric ruins. On Zuñi Reservation are the ruins of the historic seven cities of Cibola. El Morro, or Inscription Rock, is an interesting historic monument east of Zuñi which is under temporary withdrawal by the General Land Office. The region south of Zuñi to Quemado is known to be full of ruins, and traders are securing large collections of pottery therefrom at the present time. The ruins of Zuñi have been thoroughly made known to us through the work of the Hemenway expedition, under the direction of the late Frank Hamilton Cushing, assisted by Mr. F. W Hodge. The collections of this expedition are now in the Peabody Museum at Harvard University. Other important researches have been made in the Zuñi district by Doctor Fewkes. 4. RIO VERDE DISTRICT. On the northern tributaries of the Rio Verde are many cliff ruins. Of these, Honanki and Palatki are the most important. They are within the limits of the San Francisco Mountains Forest Reserve. There are numerous cliff ruins along Oak Creek and Beaver Creek and their tributaries. Near Camp Verde is the ruin known as “Montezuma Castle,” and a little farther up Beaver Creek, on the Black Mesa Forest Reserve, is the interesting Montezuma well. Mr. Mindeleff and Doctor Fewkes have made important studies and reports on the ruins of this district. Fortunately not less than nine-tenths of the prehistoric ruins of the Southwest are on lands owned or controlled by the Government of the United States; that is, they are on Forest Reserves, on unreserved public lands and on Indian Reservations.