"had extended from" is correct and usable in written English.
For example, you could use it in a sentence like this: "The hayfields had extended from the edge of the forest all the way to the riverbank."
I was particularly keen to travel along a section of the great network of Inca roads that had extended from southern Colombia to central Argentina.
Its range had extended from Maine to Georgia and west to South Dakota, Nebraska, Kansas, Oklahoma and Texas, with subspecies in Texas, New Mexico, Arizona, Colorado and Florida.
As Baghdad's relative lull in violence had extended from weeks into months, Sunnis and Shiites alike made the calculation — one shared by this reporter — that the Ghazil market was safe enough to risk walking around on a sunny Friday.
Some people at Oxfam, where she has been a goodwill ambassador from 2005 until last month, might be wishing that her near-silence had extended from the set of Under the Skin and into her public life.
Assateague has been an island only since 1933, when a storm breaching the dunes just south of Ocean City, Md. cut off the southern part of the Fenwick Peninsula, which had extended from southern Delaware down the whole ocean coast of Maryland & 12 miles into Virginia.
By 1872, the railroad had extended from Portland to Roseburg.
Todd Rundgren's long career has extended from garage-rock to wistful pop to progressive rock to producing Grand Funk Railroad.
Express highways have extended from Guiyang southwest to Huangguoshu, north to Zunyi, northwest to Bijie, and southeast to Duyun.
And under NBC, the end of prime time has extended from 11 p.m. to midnight, the better to sell advertising to offset a $793 million rights fee.
Todd Rundgren's long career has extended from garage rock to wistful pop to progressive rock to producing Patti Smith, Meat Loaf, XTC and Grand Funk Railroad; he has also been a pioneer of Internet music.
Now, scores, if not hundreds, of Guyanese immigrants are facing financial ruin because of loans said to have been arranged by Mr. Ahmad, and the repercussions from the case have extended from Queens to Washington to Guyana.
