English Language · English

Arrange the jumbled parts P, Q, R, and S to correctly complete the sentence: Maps that William Clark made ___________ showed how to reach the Pacific Ocean by a combination of waterways and land routes. P) showing the geography of the West Q) were published in 1810 and 1814. R) The expedition did not find an all-water route across the continent, but the maps S) These remained the best maps of the region until the 1840s.