Sentence:  The way led sandily along the crest of a wooded amphitheatre, with less stress on the prospect waterward than might have been expected. Cope was not allowed, indeed, to <WSD>overlook</WSD> the vague horizon where, through the pine groves, the blue of sky and of sea blended into one; but, under Medora Phillips' guidance, his eyes were mostly turned inland. 
Meaning of the word marked with <WSD> tags:  To look down upon (something) from a place that is over or above.