The first 12 inches of the unit consisted of gray- brown fill grading to a light tan caliche. This level contained late-nineteenth-century artifacts and two plastic water pipes which crossed the unit. A dense layer of cinders--containing numerous cut nails and rusted iron fragments, pieces of bottle and window glass, and a crown bottle cap--was located at 12-14 inches. Directly below the cinder layer was a three-inch level of cobblestones set in dense tan clay. Upon and within this pavement were cut nails, bottle glass, and ceramics indicative of a late- nineteenth-century deposition, as well as a few Spanish-period ceramic sherds mixed in from the deposits below. The east half of this level was interrupted by the intrusion of a pipe trench which ran north-south, and an area about 30 x 30 inches of yellow sandy mortar, in the center of which was a 12-x-18-inch intrusion of the gray-brown fill from the level above. The yellow mortar appears to be related to the construction which took place when Grenet remodeled this area for his store in 1877.

A gray, sandy clay which contained early nineteenth-century whiteware sherds, cut nails, Spanish-period ceramics, and fragments of brick and mortar was found at 17-24 inches. A mass of limestone rocks was encountered running east to west across the center of the unit. The western half of this accumulation was composed of unshaped rocks packed in gray clay. The eastern half of this feature was found to be a wall footing of shaped limestone rocks set in a dense yellow sandy mortar. The above- mentioned dark gray brown intrusion stopped on the top of a flagstone set into the west side of the wall footing at the 19-inch level. Beneath this was another flagstone, set in the same yellow mortar, which rested on top of a five- inch iron pipe in the bottom of the pipe trench described above.

The remainder of the unit was composed primarily of limestone rubble in loose, dark brown, loamy soil, except for an area along the south edge of the unit which consisted of layers of gray, sandy clay containing a few sherds of Spanish-period ceramics. Sterile, dark brown soil was reached at approximately 49 inches.

Occasional sherds of early nineteenth-century ceramics and glass, and numerous sherds of Spanish and Indian pottery were included in the fill which surrounded the limestone rubble. Several musket balls, a gunflint, and the cock from a flint lock were also present in the lower levels. Several of these objects were found to be at or near the contact of the rubble fill with the gray sandy feature at the south end of the unit. Also found within the rubble, at 33-38 inches, was the cranium of a human skull. No teeth or lower jaw were present, nor were any post- cranial bones found in conjunction with the skull or anywhere in the unit.

That we had dug into the southern portion of some ditch-like feature, the northern limits of which were outside the unit, became obvious as Unit D was completed. We drew a set of profiles of the unit as excavated, then cut a 1.5-ft-wide trench from the northeast comer of Unit D to the southwest comer of Unit B. This trench was dug to the sterile brown clay with no screening of the earth removed.

The east face of this Unit D-Unit B trench was cleaned and profiled, and the profile sketch added to that of the east face of Unit D. This completed profile drawing conclusively showed a large ditch with nearly vertical sides and a roughly flat bottom running east-west through Unit D and the added trench to the north. This ditch was about seven feet wide north to south, and its bottom was 3.8 ft below the present surface. The profile revealed the ditch had been dug from some higher surface, and had been filled with several layers of dirt and rubble; then some number of inches of the upper part of the ditch and fill were removed, leaving a flat surface which was then paved with tan clay and cobbles. No clues which could reveal how many inches of original deposition were removed