For years, people living in the Bow Valley and Kananaskis have spoken of a hidden, never completed nuclear shelter below the slope of Mount McGillivray.
The facility, inside the mountain outside Canmore, was part of a Cold War-era plan to keep important government records safe in the event of a disaster, up to and including a nuclear bomb.
But its construction, started in 1969, was never completed.
“I don’t know why they stopped. I suspect it was the water, given the amount of moisture coming in,” said local historian Rob Alexander. He wrote a detailed profile of the bunker for Highline Magazine in 2009.
“I think they got only one-third of the way through in construction,” he said. A main tunnel goes more than 55 metres deep into the mountain, with another side tunnel, more than 40 metres deep itself, branching off just after the entrance.
It’s dark, it’s dank, it’s cold.– Rob Alexander, Bow Valley historian
In a late 1960s advertisement, the company behind the bunker boasted it would provide “maximum protection against any form of destructive vice, from mildew to hydrogen bomb.”
The intent was to provide a “vault storage area” to protect critical documentation and information in the event of some sort of catastrophic emergency.
“The businessmen responsible for the industries of a country must provide data storage areas which are completely protected,” reads the bunker’s promotional brochure, one of the only publicly available documents from the now defunct company behind its construction.
Rocky Mountain Vaults and Archives Ltd. was based in Calgary and boasted of its ability to keep documents safe within nearly 275 metres of limestone, with no “underground water” being anticipated.
Given the high level of moisture inside the cave on a visit in 2018, it’s hard to believe any important documents would stay dry at all, let alone mildew-free.
“Inside it’s dark, it’s dank, it’s cold,” said Alexander.
“This would not have been useful at all. And the problem with limestone is there’s cracks, it’s fairly porous that way. So the moisture is all coming through,” explained the local historian.
Intended to be fully survivable unit
According to the promotional brochure, the bunker was planned to be fully self-sufficient in the case of a disaster.
Emergency electricity, temperature controls, air exchanges and communications systems were all planned.
“So in the event of a catastrophe, whether it was a fire or a nuclear war they could seal it off and survive quite nicely down here,” said Alexander.
Both a tourist and party destination
The empty vault caves often attract locals looking for a place to party, as abandoned beer cans and graffiti suggest. As well, tourists looking for an off-the-beaten-path spot to visit can be found on a regular basis between the hollowed-out walls underneath Mount McGillivray.
“I wasn’t really expecting this to be honest with you, the size of it,” said Chris Norman, visiting the cave-like tunnels around midday on a summer Friday afternoon. He and his wife Andie, both of Calgary, were looking for an unusual day trip and found information on the bunker through a Google search.
“Oh it was so weird. So spooky!” said Andie. “You can kind of hear the dripping and you’re not sure if it’s people or ghosts or something else so it’s kind of ominous.”
Despite his long-standing interest in the unfinished mountain opus of Rocky Mountain Vaults and Archives, Rob Alexander isn’t sure the barren limestone walls deserve any legal historical status.
“It doesn’t kind of hit that national scale compared to, say, the Diefenbunker which was finished and was used and you can visit it,” said Alexander.
“I think [it’s interesting] because it’s unfinished and it is something of a minor relic in terms of Cold War history,” said Alexander.
With files from Caroline Wagner and Erin Collins
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Sherwood Park is a large hamlet in Alberta, Canada within Strathcona County that is recognized as an urban service area. It is located adjacent to the City of Edmonton’s eastern boundary, generally south of Highway 16 (Yellowhead Trail), west of Highway 21 and north of Highway 630 (Wye Road). Other portions of Sherwood Park extend beyond Yellowhead Trail and Wye Road, while Anthony Henday Drive (Highway 216) separates Refinery Row to the west from the balance of the hamlet to the east.
Sherwood Park was established in 1955 on farmland of the Smeltzer family, east of Edmonton. With a population of 70,618 in 2016, Sherwood Park has enough people to be Alberta’s seventh largest city, but technically retains the status of a hamlet. The Government of Alberta recognizes the Sherwood Park Urban Service Area as equivalent to a city.
Sherwood Park, originally named Campbelltown, was founded by John Hook Campbell and John Mitchell in 1953 when the Municipal District of Strathcona No. 83 approved their proposed development of a bedroom community east of Edmonton. The first homes within the community were marketed to the public in 1955. Canada Post intervened on the name of Campbelltown due to the existence of several other communities in Canada within the same name, so the community’s name was changed to Sherwood Park in 1956.
The Sherwood Park Urban Service Area is located in the Edmonton Capital Region along the western edge of central Strathcona County adjacent to the City of Edmonton. The majority of the community is bound by Highway 16 (Yellowhead Highway) to the north, Highway 21 to the east, Highway 630 (Wye Road) to the south, and Anthony Henday Drive (Highway 216) to the west. The Refinery Row portion of Sherwood Park is located across Anthony Henday Drive to the west, between Sherwood Park Freeway and Highway 16. Numerous developments fronting the south side of Wye Road, including Wye Gardens, Wye Crossing, Salisbury Village and the Estates of Sherwood Park, are also within the community. Lands north of Highway 16 and south of Township Road 534/Oldman Creek between Range Road 232 (Sherwood Drive) to the west and Highway 21 to the east are also within the Sherwood Park urban service area.