Thanks to the hard work of our student crews today, we managed to answer many more questions about the large wall-trench structure we've been investigating.

Our crews continued working on several different sets of features today -- labelled in the photograph below A-E: (A) north wall trench near the northwest corner; (B) the big pit to the east of our wall trench structure; (C) several newly discovered wall trenches near the southwest corner; (D) a series of features near the center of the structure; and (E) several overlapping wall trenches near the center of the east wall of our structure.

At (A) -- we completed excavations of the north wall trench. Yesterday, it looked like this with the posts removed...

We completed excavation of the trench fill today -- leaving a long trench deepening towards the center of the wall.

We also started excavations on the third north wall trench today -- at the top it looked like a single very wide trench (shown at left below). However, after investigating a portion of it - the feature now appears to be two almost overlapping wall trenches. We'll continue work on this feature on Thursday.

At (B) -- we finished up the rest of the big pit and started cleaning the units around it to document other features. More news on that endeavor on Thursday.

At (C), we continued work on the southwest corner trenches. Several of the crew quickly excavated another unit to reveal the complete southwest corner of the building.

As the photograph below illustrates (view to the west), we now have the four trenches on the west wall and four trenches on the south wall.

We'll complete excavation of sections of each of these trenches over the next few days to document the southwest corner fully.

At (D), we stripped the two units down another 3 cm or so to reveal the other features more clearly -- two or three features turned up. We'll examine these further on Thursday and Friday.

Finally, over at (E) we continued to struggle to interpret the east wall. Things have slowly started to piece together. In one of the units, we discovered three sets of posts -- suggesting three overlapping wall trenches.

In the nearby unit to the north, we identified at least one set of posts.

Putting this information together with last year's excavations, it appears that all four of the trenches for the east wall are overlapping. The "oldest" trench (first building of the structure) is outlined in black below -- the second version of the trench in white, the third in blue, and the final construction shown in yellow. We'll work further to confirm this hypothesis over the next few days.

More news tomorrow.