22 BUREAU OF AMERICAN ETHNOLOGY Tbull. 70 



side of the samo, each apparently with a central depression like a kiva. 



All those mounds have been more or less mutilated by indiscriminate 



digging, but many mounds, still untouched, remain to be excavated 



bofore we can form an adequate conception of the group. The 



"triple-walled tower" is now in such a condition that the author 



could not determine whether it was formerly circular or D-shaped; 



the "small tower" is in even worse condition and its previous form 



could not be made out. The> Mud Spring mounds cover a much 



larger area than descriptions or ground plans thus far published would 



indicate. 



Originally Mud Spring Ruin consisted of a cluster of pueblos of 



various sizes, each probably with a circular kiva and rectangular rooms, 



combined with one or more towers at present too much dilapidated 



to determine architectural details without excavations. Like the 



other clusters of pueblos in the McElmo and Montezuma Valley, the 



cemetery near Mud Spring Ruin has suffered considerably from 



pothunters, but there still remain many standing walls that are well 



preserved. 



Ruin with Semicircular Core 



This ruin is situated on the San Juan about 3 miles below the 

 sandy bed of the mouth of the Montezuma, on a bluff 50 feet above 

 the river. The ground plan by Jackson 1 indicates a building shaped 

 like a trapezoid, 158 feet on the northeast side, 120 on the southeast, 

 and 32 on the northwest side. The southwest side is broken mid- 

 way by a reentering area at the rim of the bluff over the river. 



In the center of this trapezoidal structure there is represented a 

 series of rooms arranged like those of Horseshoe House, but com- 

 posed of a half-circular chamber surrounded by seven rooms between 

 two concentric circular walls. Thus far the homology to Horseshoe 

 House is close but beyond this series of rooms, following out the 

 trapezoidal form, at least five other rooms appear on the ground 

 plan. The position of these recalls the walls arranged around the 

 tower at Mud Spring village. In other words, the ruin resembles 

 Horseshoe House, but has in addition rectangular rooms added on 

 three sides, forming an angular building. So far as the author's 

 information goes, no other ruin of exactly this type, which recalls 

 Sun Temple, has been described by other observers. 



WOLLEY RANCII RuiN 



Wolley Ranch Ruin, situated 10^ miles south of Dolores, is one of 

 the largest mounds near Cortez. There are evidences of the former 

 existence of a cluster of mounds at this place, only one of which 

 now remains. This is covered with bushes, rendering it difficult 

 to trace the bounding walls. 



i Tenth Ann. Rept. U. S. Geol. Surv. Terr. (Hayden Survey) for 1876, pi. xlviii, fig. 2, 1S79. 



