Straddling the highway at the eastern entrance to Riding Mountain National Park, a truss bridge made of hand-hewn logs and local stones featuring turret-like cupolas set on twin kiosks transports you to the 1930s and the early days of Canada’s national parks system. The gateway makes some people feel like they’re living the scene from Jurassic Park when the awestruck main characters first pass through a massive gate to an island theme park.