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Directions to Algonquin Radio Observatory

Algonquin Radio Observatory is readily accessible from a number of Canadian airport hubs. Approximately six hours drive from Toronto's Pearson International airport (YYZ) and three hours from Ottawa Airport (YOW) the observatory's unique location is still located near major transport hubs. Locate Algonquin Radio Observatory by map here

From Ottawa

By road, leave Ottawa on the Trans Canada Highway 17 West  toward Pembroke. After 152 km and at Petawawa exit left at Doran Rd. and then immediate right onto Barron Canyon Rd. which becomes the Achray Road, following signs to Sand Lake Gate entrance and Achray campground. Drive 75 kilometers to kilometer post 75 where the Observatory sign is evident. A yellow flashing beacon marks the Observatory entrance on the right hand side. 

From Toronto

Exit Toronto North on highway 400. After 86 kilometers merge onto provincial Route 11 towards Orillia and North Bay. Exit onto Highway 60 towards Ottawa (exit 223) and drive for approximately 165 km. At Killaloe turn left onto Highway 58 and drive approximately 50 km to Highway 17. At Petawawa turn left and drive west on Highway 17 to Doran Rd. Exit left and immediately right onto Barron Canyon Rd. which becomes the Achray Rd following signs to Algonquin Park Sand Gate Entrance and Achray campground. Drive 75 kilometers to kilometer post 75 where the Observatory sign is evident. A yellow flashing beacon marks the Observatory entrance on the right hand side. 

From Pembroke

Leave Pembroke on highway 17 towards Petawawa, exit left on Doran Rd and then immediate right onto Barron Canyon Rd. which becomes the Achray Road, following signs to Sand Gate entrance and Achray campground.  Drive 75 kilometers to kilometer post 75 where the Observatory sign is evident. A yellow flashing beacon marks the Observatory entrance on the right hand side.

Use of the Park interior, other than for transit requires a Park daily use permit. Visitors should purchase a Park permit at the Sand Lake Gate entrance (kilometer 25) upon arrival. Drivers should exert special care when driving on roads in the Park. Drivers may encounter commercial logging vehicles. Logging activities are reported on CB channel 23 where drivers report their location and direction into or out of the park using the numbered signs at the roadside. Vehicles enroute to the Observatory are encouraged to phone the Observatory before they enter the Park.

Important note: Do not rely on your GPS for navigation! It may direct you along roads that are impassible, that do not exist or that are closed for vehicle travel.