 So, I'm going to start drawing part of a stratigraphic column here. So, each one of these bars is 50 centimeters, and I'm going to start at the bottom of this bar and draw it. So, I have one meter, and this is nicely labeled, FACES A, which is described down here. So, we have one meter, and it has some gravel in it. So, I'm going to draw a line like this, and I'll show the lithology. It has some scattered pebbles here. Then we have about half of one of these lines of FACES D, and then some more of FACES A. So FACES D is mostly sand, but with a little bit of the gravel in it. I'm going to draw it on my column with the grain size showing sand, but when I fill it in, I'm going to represent that it has some pebbles by drawing a pebble like that. We have another half of meter of FACES A, which has the gravel, so I will draw that. Then we have FACES D for about a meter, and the way it's sketched here, I think that the lower part is finer grained, and then there's the surface, and it gets coarser grained again. So I'm going to capture that by having some finer sand and then some coarser sand. Coarser sand has a few pebbles, but not very many. So I'll put a couple pebbles in there, and some dots to represent the sand. I should also label the FACES, so we can label this one FACES A, and then both of these are FACES D. Now I have, it looks like about half the distance of that line represents FACES A, and if I go down this way, it is much, much thicker. If I go up, it gets much thinner, and the FACES A goes away. So I'm actually going to draw that as it's thinning, so it needs to go out to the gravel. Then what we can do is, because it pinches out all the way over here, and it looks like it's maybe a meter thick over here, I'm going to draw some dots. And then that triangle suggests that it varies in thickness laterally along the outcrop. Then right here we have a pretty consistent layer of FACES E, which doesn't have the conglomerate or the pebbles in it. So that would go up to two and a half meters here, and it actually is a pretty constant thickness. It sort of thickens a little bit here. So I'm going to draw it, this going to the sand, and this one doesn't have pebbles in it. So even though the grain size is similar to this one before, it's thick enough to be called a new FACES. I'm not sure that this lower part here might also be FACES E. So I'll put an E for FACES E, and then we go into FACES B, which is pretty irregular. So we can say that that goes up to, let me make sure I'm not losing anything. So we have one meter, two meters, three meters. It goes up to three plus a little bit. And that one has these big black areas, which I'm not sure what they are. But I'm going to guess that they are breccia clasts. So I'm going to make it a little bit coarser because it has a lot of those clasts. So we have some sand, we have some clasts, we have whatever these black things are. If I was actually looking at this in the field, I would be able to tell what they are. So then from here, I'm going to let you finish the second part of this stratigraphic column. One thing I am going to add to what I have already is that these arrows are showing this place where this bed of FACES A cuts out. And so I think that that's probably an erosion surface. And so if I was going to draw the erosion surface in here between those two beds, I would add a wavy line. So basically, I can, with my FACES E symbols over here, the nice thing about doing it digitally. And then I'm going to draw my wavy line between them to show that I think that that's an uncomformity. So that's how I might draw it if I was actually in the field. So thanks for watching.