Camping
There are four campsites in Yoho National Park, +1 250 343 6783, yoho.info@pc.gc.ca, (http://www.pc.gc.ca/pn-np...). Camping begins in May, with all campgrounds open by late June, and all closed by mid October. Exact dates vary depending on the year and the snowfall.
Backcountry
Backcountry camping is highly regulated in order to try to preserve the wilderness. You will need a backcountry pass for camping in any place other than those listed above.
Camping is permitted in the Amiskwi, Otterhead, Ice River, and Porcupine valleys. Campers must be at least 3 km from the highway, 100 m from water and 50 m from the hiking trails. You may not stay in any place for over 3 days. Campsites can be reserved up to 3 months in advance.
Lake O'Hara is a 30 site campground open from mid June to October. Reservations are required and can be made up to 3 months in advance at +1 250 343 6433. 5 sites are reserved for assignment 24 hr in advance.
For additional information, trail maps, and safety concerns, contact Yoho National Park.