Complete blocks 4C, 5C, 5D, 4, 3D, and 2D. Data file in mag is 17sstlmnt.wg. Started this morning in northern portion of Gate Grid, and only doing western 10m of blocks 4C and 5C since the remainder of those blocks include large rocky outcrop. After doing blocks 3D and 4D in the afternoon, I realized I had my pocket knife in my pocket from lunch which may have messed up the data. I removed it for the last two transects of 3D. When I downloaded the data, sure enough it's covered with regular array of anomalies along the all the transect lines in 4D and 3D, except the last couple of meters in the eastern end of 3D where it abruptly clears up after I removed my knife. I'll have to redo those two blocks, though it will be good to keep that bad data as a teaching tool!