In a
recent post, I published an illustration of the
Smoking Hills of Franklin
Bay as seen by british Captain Robert McClure in 1850, when he was
exploring the coastline in search of the lost John Franklin expedition:
At the mouth of the river Horton, McClure sent a search party to investigate
what appeared to be fire in what is now Franklin Bay. Thick columns of
smoke were emerging from vents in the ground. The sailors returned with a sample of the smoldering rock, and when they set it down
on McClure's desk it burned a hole in the wood.
Those
Smoking Hills are located about 1 km south of the Beaufort Sea, a couple of miles south of where the Horton River brokes through the
headland.
The odd rarity is easy to explain - deposits of lignite, carbon-rich shale, and pyrite rich in sulphur, ignite spontaneously
when the hills erode and the mineral veins are exposed to the air,
producing a constant smoke.
The Smoking Hills are very impressive. They are a long (60 km) stretch of cliffs and hills.
Franklin Bay ( 69°40′N, 125°30′ W ) is a large
inlet in the Northwest Territories, Canada.
It is a southern arm of the
Amundsen Gulf, on Beaufort Sea. Franklin Bay receives the Horton River, after meandering through the Smoking Hills on the east coast of Cape
Bathurst. The river snakes sharply back and forth, creating a curved
line parallel to the coast.
RIVER HORTON
The Horton starts from a small lake, goes through a wild canyon, then passes meandering at the back of the Smoking Hills
and reaches the sea on the east side of Cape Bathurst, at Franklin Bay. There the Horton's mouth forms a wide delta.
As the river approaches its mouth, it starts meandering through the tundra flatland.
The mouth is presently a delta in the east coast, into Franklin Bay; but some years ago the river's course was different.
The mouth was then 100 kilometres further north on the
west side of Cape Bathurst, until about 1800, when a meander eroded
through.
This NASA satellite image shows the deactivated meanders, now filled with sea water, as the Horton suddenly carved his new mouth to the east. It's a rare anomaly of its kind.