>>>Following the old bed of the Creek-Stream River, I found this to be >>>on a distance of about 30-40 miles. >>> In other words: the land rises about 10 metres for every mile you >>> travel on the river.
>> Or in my case about 5 or 6 metres for every mile.
Dave:
> So, 15-18 feet per mile average gradient. On a small river, say
> around 5000 - 8000 cfs (185 - 300 cumecs), this is not going to
> present a lot of problems for very small boats (read canoes, kayaks
> or rafts) going downriver, but anything going upriver, forget it.
> Any river substantial enough to allow decent sized boats traveling
> up it - i.e. sailboats capable of going against the current is going
> to be very scary and unnavigable to anything of any size -
> particularly without a system of locks.
I may have erred on the side of maeandring currents in the lowlands, e.g. the Oslir from Furthest down, but for the Creek-Stream River that's only Beast Valley and the Uzfields. The stretch from the current site of the Lead Hills down to Karse was navigable upriver by some means. Most likely the vessel was pulled upriver from the shore or by magic (or more likely, both). I wonder who the river humans organizing this boating were (since Hrestol Arganitis surely would have mentioned durulz)? Did they disappear among the coastal Pelaskites?
> With the higher figure of 30 fpm gradient it is going to be serious
> fun - particularly as I believe it travels through a gorge. I would
> love to paddle that if there is substantial water (in a modern
> plastic kayak downriver or course!)...
The narrative need tells us "navigable by reed boat", admittedly steered by durulz swimmers.
>> I think Furthest is maybe only about 1000 feet above sea level >> (maybe less), which gives it an average slope of 1 foot per mile.
> 1 fpm is more respectable for a river the size of the Oslir. 2 m (6
> ft) per mile is pushing it!
Still, Furthest is pretty high up the Pass, as high as the lower Kordros Island.
For geographical reference, how high is the Khyber Pass?
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