Which preposition to use with halfway

up Occurrences 2%

Large groves of cocoa-palms scattered about from the water's edge to halfway up the hills, formed a pleasing break in the sombre green of the forest scenery.

with Occurrences 2%

; AA223534. Clifford P. Lillya (A); 30Jan64; R330641. LIMITED EDITIONS CLUB, INC. SEE Macy (George) Companies, Inc. LINDLEY, ERNEST K. Halfway with Roosevelt.

Which preposition to use with  halfway