Kilns of the Han Dynasty making grey pottery were able to reach firing temperatures above 1000 C (1832 F).
The fourth and last major artifact category is the gray, coil pottery which is most often used to identify archaeological sites as Fremont.
Important features of this period include the widespread production of iron artifacts for daily use and the introduction of grey earthenware pottery with a beaten pattern.
Layer 38 yielded gray flat-bottomed pottery of Shoshonean manufacture.
"Dridu" communities produced and used gray or yellow fine pottery, but hand-made vessels were still predominant.
They also continued to make corrugated gray pottery.
It specializes in gray and blue pottery that has been made in this area for nearly 2000 years.
Plain and neckbanded gray pottery was a standard at Pueblo I sites.
The simple, gray pottery allowed them a better tool for cooking and storage.
Colonel Macklin was not there, but the lighter's flame showed what looked at first like fragments of gray pottery lying all over the sweat-damp pillow.