The yarn number is the length in yards of one pound of the yarn, divided by 1600. Symbol Nar. This is the same as the weight in ounces of 100 yards. So one pound of number 1 run yarn is 1600 yards long, one pound of number 2 run yarn is 3200 yards long, and so on.
As with most other volcanoes in the Cascade Range, Mount St. Helens is a large eruptive cone consisting of lava rock interlayered with ash, pumice, and other deposits. The mountain includes layers of basalt and andesite through which several domes of dacite lava have erupted.
Historically, Mount St. Helens is one of the most active volcanoes in the Cascade range, though still considered dormant by most standards. Native Americans in the region experienced several of the volcanoes early eruptions, thus coining a name which meant smoking or fire mountain.he Puyallup tribes called the mountain Loowitlatkla, meaning literally Lady of Fire, the Klickitats called the mountain Louwala-Cloughï»¿, and the Cowlitz tribes called it Lavelatla, which means smoking mountain..