*Beats internet with a stick* STAY ON. Okay now that's fixed.<br/><br/>Okay lets talk about the climate they are living in;<strong>Winters</strong>: Cold, Heavy to light snow and if it dose no the weather might be a dry cold. Right now we are saying its in the area of freezing temps. Most likely rainy in the beginning and end.<strong>Springs</strong>: Most likely cold, rainy. But starting to get warm.<strong>Summers</strong>: Mild maybe highs of high 80s low 90s, normally around 70s. Most likely dry with no rain. (This is were our first problem with any kind of clay/mud based housing will lie. They will dry but the weather will not be hot enough to "Bake" it making it loose and dirt like. We would need temps of in the high 90s or 100s to properly bake the house during the summer. That's why adobe dose so well in the south/west states. This is something Bethany might know unless they do build a kiln which would take months to do.)<strong>Fall:</strong>Starting to cool down, maybe rain in toward the.<br/><br/>Cold/Wet weather never dose really well with Adobe homes because they need a lot of repair after it rains or the snow starts to melt. They where made to stay drafty in order to keep cool during the summer months and with mild winters in the south/west states it would not be hard to keep them warm.<br/><br/>Right now we are looking at weather like in the Northern states. where most log or brick homes where built. Though very few people build brick homes because it took a lot of time and/or money back in the day.<br/><br/>Now back to the weather and river clay. The weather is cold and the streams or most likely glacier feed. Which means the water is going to be cold. And the ground they are going to be digging in almost just as cold. Not many of them will have glove and if they do may not want to ruin them with red clay. And they are going to need a lot of clay to build any kind of house,  more if they are doing brick or adobe. Unless they build shovels they are going to be doing it by hand and well after so long your not going to be able to dig in that dirt with your hands freezing. The forest around the rivers however will give enough wood for building with out risk of freezing your hands off and will most likely keep you warm because of all the work you have to do cutting them down and such. Also brick and log homes don't need as much repair after a heavy rain or snow melt.