Two suggestions: I'd appreciate you accepting Siskiyou as a type-in for the Klamaths and Guadalupe Mountains as a type-in for the Sacramento Mountains. It's really tough to tell the difference between those ranges at this resolution, and in both cases I feel like those ranges would be a reasonable answer for the marked range. This is especially true since I don't think the Sacramentos go down into Texas, but the Guadalupes definitely do.
It's still wild to me as somebody who has never left the Western U.S. how lowland the east coast is. I was born at nearly the same elevation as the peak of the highest mountain in the Appalachians. I'll have to visit someday.
Two suggestions: I'd appreciate you accepting Siskiyou as a type-in for the Klamaths and Guadalupe Mountains as a type-in for the Sacramento Mountains. It's really tough to tell the difference between those ranges at this resolution, and in both cases I feel like those ranges would be a reasonable answer for the marked range. This is especially true since I don't think the Sacramentos go down into Texas, but the Guadalupes definitely do.