Upriver lacks the post-vocalic glottal stops of the other two dialects, and vowel length usually appears in that environment for speakers of that dialect.
The ship then proceeds upriver, leaving smoking wrecks behind.
Erskine, ever the engineer, designed a tetrahedron-shaped marine cheval-de-frise, a defensive barrier to prevent warships from sailing upriver.
Using steam power, riverboats were developed during that time which could navigate in shallow waters as well as upriver against strong currents.
The steamboat was full of clothing, tools, food and various consumer items on their way upriver.
In some cases, steamboats would also drag flatboats bringing cargo upriver allowing flatboat operators to profit on the return journey as well.
By 1880, the island had four cottages, all located upriver, on the northern portion of the island.
I keep a guard boat out upriver during the night.