Trading posts like Ganado and Klagetoh in Arizona (both originally owned by Lorenzo Hubbell) would have provided many of these large Navajo rugs. J.B. Moore at Crystal in northwestern New Mexico had a thriving catalog business and undoubtedly would have taken orders for large rug commissions.
The Teec Nos Pos trading post in northeastern Arizona was known more for runner-shaped rugs (characterized with length three to four times the width), but many of these runners were also well over 10’ long and could take over a year to make.
In the 1950s-80s some of the largest rugs woven on the reservation came out of Chinle and Wide Ruins, regions known for weaving all-natural, hand-spun rugs. The popular colors from this time frame were golds, browns, yellows, and green.