The Friends of the Pine Ridge Indian Reservation would gladly accept your adult-size quilts:
https://friendsofpineridgereservatio.../donate-goods/
The need is great and they accept all sizes. You can specify that your quilts go to an *elder*. They also have a need for quilts for adult women that are in shelters due to abuse. They would be pleased if you would consider them. And, just a suggestion, florals are great for teen girls, too!