Castle Mountain
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Castle Mountain () is a mountain located within
Banff National Park Banff National Park is Canada, Canada's first National Parks of Canada, national park, established in 1885 as Rocky Mountains Park. Located in Alberta's Rockies, Alberta's Rocky Mountains, west of Calgary, Banff encompasses of mountainous ter ...
in the
Canadian Rockies The Canadian Rockies () or Canadian Rocky Mountains, comprising both the Alberta Rockies and the British Columbian Rockies, is the Canadian segment of the North American Rocky Mountains. It is the easternmost part of the Canadian Cordillera, w ...
, approximately halfway between Banff and Lake Louise. It is the easternmost mountain of the Main Ranges in the Bow Valley and sits astride the Castle Mountain Fault which has
thrust Thrust is a reaction force described quantitatively by Newton's third law. When a system expels or accelerates mass in one direction, the accelerated mass will cause a force of equal magnitude but opposite direction to be applied to that ...
older
sedimentary Sedimentary rocks are types of rock formed by the cementation of sediments—i.e. particles made of minerals (geological detritus) or organic matter (biological detritus)—that have been accumulated or deposited at Earth's surface. Sedime ...
and
metamorphic rock Metamorphic rocks arise from the transformation of existing rock to new types of rock in a process called metamorphism. The original rock ( protolith) is subjected to temperatures greater than and, often, elevated pressure of or more, caus ...
s forming the upper part of the mountain over the younger rocks forming its base. The mountain's castellated, or
castle A castle is a type of fortification, fortified structure built during the Middle Ages predominantly by the nobility or royalty and by Military order (monastic society), military orders. Scholars usually consider a ''castle'' to be the private ...
-like, appearance is a result of erosive processes acting at different rates on the peak's alternating layers of softer
shale Shale is a fine-grained, clastic sedimentary rock formed from mud that is a mix of flakes of Clay mineral, clay minerals (hydrous aluminium phyllosilicates, e.g., Kaolinite, kaolin, aluminium, Al2Silicon, Si2Oxygen, O5(hydroxide, OH)4) and tiny f ...
and harder
limestone Limestone is a type of carbonate rock, carbonate sedimentary rock which is the main source of the material Lime (material), lime. It is composed mostly of the minerals calcite and aragonite, which are different Polymorphism (materials science) ...
, dolomite and
quartzite Quartzite is a hard, non- foliated metamorphic rock that was originally pure quartz sandstone.Essentials of Geology, 3rd Edition, Stephen Marshak, p 182 Sandstone is converted into quartzite through heating and pressure usually related to tecton ...
. The mountain was named in 1858 by
James Hector Sir James Hector (16 March 1834 – 6 November 1907) was a Scottish-New Zealand geologist, naturalist, and surgeon who accompanied the Palliser Expedition as a surgeon and geologist. He went on to have a lengthy career as a government employed ...
for its castle-like appearance. From 1946 to 1979 it was known as Mount Eisenhower in honour of the
World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
general
Dwight D. Eisenhower Dwight David "Ike" Eisenhower (born David Dwight Eisenhower; October 14, 1890 – March 28, 1969) was the 34th president of the United States, serving from 1953 to 1961. During World War II, he was Supreme Commander of the Allied Expeditionar ...
. Public pressure caused its original name to be restored, but a pinnacle on the southeastern side of the mountain was named Eisenhower Tower. Located nearby are the remains of Silver City, a 19th-century mining settlement, and the
Castle Mountain Internment Camp A castle is a type of fortification, fortified structure built during the Middle Ages predominantly by the nobility or royalty and by Military order (monastic society), military orders. Scholars usually consider a ''castle'' to be the private ...
in which persons deemed enemy aliens and suspected enemy sympathizers were confined during
World War I World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...
. While looking nearly inaccessible from the
Trans-Canada Highway The Trans-Canada Highway (Canadian French, French: ; abbreviated as the TCH or T-Can) is a transcontinental federal–provincial highway system that travels through all ten provinces of Canada, from the Pacific Ocean on the west coast to the A ...
, the peak can be ascended from the backside on the northeastern slopes. The trail to Rockbound Lake leads hikers around the eastern side. The
massif A massif () is a principal mountain mass, such as a compact portion of a mountain range, containing one or more summits (e.g. France's Massif Central). In mountaineering literature, ''massif'' is frequently used to denote the main mass of an ...
contains several high points including Helena Ridge (), Stuart Knob () and Television Peak (), the latter being named for the TV repeater located on top. Technicians use a helicopter rather than hiking the long ascent to the top.


Geology

Castle Mountain is the easternmost member of the Main Ranges in the Bow Valley. Passing through the mountain is the Castle Mountain Fault, a
thrust fault A thrust fault is a break in the Earth's crust, across which older rocks are pushed above younger rocks. Thrust geometry and nomenclature Reverse faults A thrust fault is a type of reverse fault that has a dip of 45 degrees or less. I ...
which separates it and the other nearby peaks of the Main Ranges from the Sawback Range to the northeast, the westernmost of the Front Ranges in the region. Castle Mountain's upper sections, including its cliff faces, consist of late
Pre-Cambrian The Precambrian ( ; or pre-Cambrian, sometimes abbreviated pC, or Cryptozoic) is the earliest part of Earth's history, set before the current Phanerozoic Eon. The Precambrian is so named because it preceded the Cambrian, the first period of the ...
and
Cambrian The Cambrian ( ) is the first geological period of the Paleozoic Era, and the Phanerozoic Eon. The Cambrian lasted 51.95 million years from the end of the preceding Ediacaran period 538.8 Ma (million years ago) to the beginning of the Ordov ...
age
sedimentary rocks Sedimentary rocks are types of rock formed by the cementation of sediments—i.e. particles made of minerals (geological detritus) or organic matter (biological detritus)—that have been accumulated or deposited at Earth's surface. Sedim ...
such as
limestone Limestone is a type of carbonate rock, carbonate sedimentary rock which is the main source of the material Lime (material), lime. It is composed mostly of the minerals calcite and aragonite, which are different Polymorphism (materials science) ...
and
shale Shale is a fine-grained, clastic sedimentary rock formed from mud that is a mix of flakes of Clay mineral, clay minerals (hydrous aluminium phyllosilicates, e.g., Kaolinite, kaolin, aluminium, Al2Silicon, Si2Oxygen, O5(hydroxide, OH)4) and tiny f ...
along with some
metamorphic Metamorphic rocks arise from the transformation of existing rock to new types of rock in a process called metamorphism. The original rock (protolith) is subjected to temperatures greater than and, often, elevated pressure of or more, causi ...
quartzite Quartzite is a hard, non- foliated metamorphic rock that was originally pure quartz sandstone.Essentials of Geology, 3rd Edition, Stephen Marshak, p 182 Sandstone is converted into quartzite through heating and pressure usually related to tecton ...
. Originally deposited in an ancient shallow sea, these deposits were later thrust over younger layers of late
Paleozoic The Paleozoic ( , , ; or Palaeozoic) Era is the first of three Era (geology), geological eras of the Phanerozoic Eon. Beginning 538.8 million years ago (Ma), it succeeds the Neoproterozoic (the last era of the Proterozoic Eon) and ends 251.9 Ma a ...
and
Mesozoic The Mesozoic Era is the Era (geology), era of Earth's Geologic time scale, geological history, lasting from about , comprising the Triassic, Jurassic and Cretaceous Period (geology), Periods. It is characterized by the dominance of archosaurian r ...
age which now form the forested, gently sloping, base of Castle Mountain. It is an example of a castellated mountain in which erosion has sculpted a series of flat or gently sloping terraces composed of softer shale and sharp cliffs which reveal alternating layers of shale interspersed by harder layers of quartzite, dolomite and limestone.


First Nations land claim

On January 25, 2017, the
Government of Canada The Government of Canada (), formally His Majesty's Government (), is the body responsible for the federation, federal administration of Canada. The term ''Government of Canada'' refers specifically to the executive, which includes Minister of t ...
and the Siksika Nation announced an agreement to settle a land claim in the region of Castle Mountain, known as ''Miistukskoowa'' to the Siksika. The agreement ended an outstanding claim dating back to the 1880s when land located at Castle Mountain was set aside as a timber berth for the use and benefit of the First Nation. The basis of the claim was that these lands were wrongfully taken from the First Nation in 1908 without their consent and without proper compensation. In 1911, these lands at Castle Mountain were added to Rocky Mountain Park, now known as Banff National Park. The agreement provides the Siksika Nation with approximately $123 million in financial compensation, the option to purchase on the open market up to 17,491 acres of land outside of the boundaries of Banff National Park and apply to Canada to have the lands added to its reserve, economic opportunities inside Banff National Park, and ongoing park access for cultural, traditional and educational purposes. First Nation members voted to approve the settlement on March 4, 2016. Canada gave its final approval on August 15, 2016.


History

James Hector, who accompanied the Palliser Expedition, encountered Castle Mountain in August 1858 while leading a side expedition to find the
headwaters The headwater of a river or stream is the geographical point of its beginning, specifically where surface runoff water begins to accumulate into a flowing channel of water. A river or stream into which one or many tributary rivers or streams flo ...
of the
Bow River The headwaters of the Bow River in Alberta, Canada, start at the Bow Glacier and Bow Lake (Alberta), Bow Lake in Banff National Park in the Canadian Rockies, Canadian Rocky Mountains. The glacial stream that feeds Bow Lake (Alberta), Bow Lake ...
. He noted that it "...looks exactly like a gigantic castle" and named it Castle Mountain. He also made the first recorded ascent of its slopes, but is not believed to have reached its
summit A summit is a point on a surface that is higher in elevation than all points immediately adjacent to it. The topographic terms acme, apex, peak (mountain peak), and zenith are synonymous. The term (mountain top) is generally used only for ...
. The official journal of the Palliser Expedition records his ascent: The first known climber to reach the top of Castle Mountain was Arthur P. Coleman, a professor at the
University of Toronto The University of Toronto (UToronto or U of T) is a public university, public research university whose main campus is located on the grounds that surround Queen's Park (Toronto), Queen's Park in Toronto, Ontario, Canada. It was founded by ...
, in 1884. Lawrence Grassi and P. Cerutti, both from Canmore, were the first to climb Eisenhower Tower in 1926. In 1881, Joe Healy received some
ore Ore is natural rock or sediment that contains one or more valuable minerals, typically including metals, concentrated above background levels, and that is economically viable to mine and process. The grade of ore refers to the concentration ...
in trade from an Indigenous person which was discovered to contain a relatively high silver content. The following year he settled at Castle Mountain as a
prospector Prospector may refer to: Space exploration * Prospector (spacecraft), a planned lunar probe, canceled in 1962 * ''Lunar Prospector'', a NASA spacecraft Trains * Prospector (train), a passenger train operated by the Denver & Rio Grande Western ra ...
. News of Healy's ore soon spread; others began to arrive and the settlement of Silver City, situated near Castle Mountain, quickly developed. It was already thriving when the
Canadian Pacific The Canadian Pacific Railway () , also known simply as CPR or Canadian Pacific and formerly as CP Rail (1968–1996), is a Canadian Class I railway incorporated in 1881. The railway is owned by Canadian Pacific Kansas City, Canadian Pacific Ka ...
transcontinental railroad was built through the area in 1884. Over three thousand people lived there at its height, but it was almost entirely abandoned in 1885 because the mines failed to yield a significant profit. Situated nearby is
Castle Mountain Internment Camp A castle is a type of fortification, fortified structure built during the Middle Ages predominantly by the nobility or royalty and by Military order (monastic society), military orders. Scholars usually consider a ''castle'' to be the private ...
, a First World War internment camp where Ukrainian immigrants to Canada were confined. Life in the camps was often described as 'grim'; with its isolated location far from the roads of the time, the Castle Mountain camp was an ideal place to confine 'enemy aliens' and 'suspected enemy sympathisers'. The forced labour of these men helped build much of the infrastructure of Banff National Park. Internees were held at the Cave & Basin site during the winter months. Construction began in 1910 at Castle Junction on a highway connecting
British Columbia British Columbia is the westernmost Provinces and territories of Canada, province of Canada. Situated in the Pacific Northwest between the Pacific Ocean and the Rocky Mountains, the province has a diverse geography, with rugged landscapes that ...
to
Calgary Calgary () is a major city in the Canadian province of Alberta. As of 2021, the city proper had a population of 1,306,784 and a metropolitan population of 1,481,806 making it the third-largest city and fifth-largest metropolitan area in C ...
that would, upon its completion in the early 1920s, make Castle Mountain more accessible to climbers, hikers and other tourists. At a meeting of the Ottawa Canadian Club in January 1946 at which World War II general Dwight D. Eisenhower was a guest speaker,
Prime Minister A prime minister or chief of cabinet is the head of the cabinet and the leader of the ministers in the executive branch of government, often in a parliamentary or semi-presidential system. A prime minister is not the head of state, but r ...
Mackenzie King William Lyon Mackenzie King (December 17, 1874 – July 22, 1950) was a Canadian statesman and politician who was the tenth prime minister of Canada for three non-consecutive terms from 1921 to 1926, 1926 to 1930, and 1935 to 1948. A Liberal ...
renamed Castle Mountain in his honour. Alluding to Scotland's recent gift to Eisenhower of a castle, King said, "We haven't any ancient castles, but we have something more enduring, we have ancient mountains ... we have a mountain named Castle and we have thought that to change the name to Mount Eisenhower we would pay a tribute in the form of permanency expressing our admiration years after the castle in Scotland has completely disappeared." Immediate reaction was mixed; many Banff residents approved, but a
telegram Telegraphy is the long-distance transmission of messages where the sender uses symbolic codes, known to the recipient, rather than a physical exchange of an object bearing the message. Thus flag semaphore is a method of telegraphy, whereas pi ...
sent to King in the name of "members of the ski clubs and climbing clubs of the Rocky Mountains" protested the "inappropriate name of Eisenhower Peak". By the 1970s, increasing displeasure at the new name was being voiced by Banff area residents through petitions submitted to the Alberta Heritage Sites Board for the restoration of the original name. A change of name was already planned by 1976, but its implementation was delayed to avoid causing offense on account of the
United States Bicentennial The United States Bicentennial was a series of celebrations and observances during the mid-1970s that paid tribute to historical events leading up to the creation of the United States as an independent republic. It was a central event in the memo ...
commemorations taking place that year. The mountain was officially renamed Castle Mountain in November 1979, but an isolated pinnacle at the southeastern end was designated Eisenhower Tower.


Scramble route

While the peak presents a formidable challenge to climb when viewed from the highway, the mountain can be ascended by first hiking to Rockbound Lake which is located on the easier backside. A break in a cliff band provides access to a route above the lake. The ascent is a very long day when undertaken from the trailhead and can easily require 12 hours for a return trip. This cannot be shortened as random backcountry camping is not permitted in the area. The Castle Mountain Hut on the southern side could be used but requires technical rock climbing skills and possibly a rope to access it. While the normal scrambling route reached via Rockbound Lake is primarily a long slog, there is no discernible trail once one reaches the top of the "big hill" overlooking the lake and requires moderate scrambling abilities and a bit of route finding to ascend the gully leading to the upper bench. If pressed for time or a different objective, Helena Ridge is basically a scree slog straight up although a lingering snowfield in the gully above the big hill may provide some relief. Snow patches often linger on the upper routes even in late summer so an
ice axe An ice axe is a multi-purpose hiking and climbing tool used by mountaineers in both the ascent and descent of routes that involve snow or ice covered (e.g. ice climbing or mixed climbing) conditions. Its use depends on the terrain: in its si ...
should be considered.


Climbing routes

There are numerous rock climbing routes available on the mountain, the most common routes being: * Bass Buttress * Brewer Buttress * Ultra Brewers * Eisenhower Tower


References


External links

* * * {{Canadian Rockies, state=collapsed Mountains of Banff National Park Two-thousanders of Alberta Siksika Nation Alberta's Rockies