Mary Schäffer Warren (1861–1939) was an American-Canadian naturalist, illustrator, photographer, and writer. She was known for her experiences in the Canadian Rockies in the early 20th century.

Maligne Lake is a lake in Jasper National Park, Alberta, Canada. The lake is famed for the colour of its azure water, the surrounding peaks, the three glaciers visible from the lake, and Spirit Island, a frequently and very famously photographed islet. The lake is located 44 km (27 mi) south of Jasper town, and is accessible by motor vehicle, including shuttle buses from Jasper. Boat tours run to Spirit Island in the spring to autumn season. The 44 km Skyline Trail, Jasper's most popular, highest and above treeline, multi-day hike, begins at Maligne Lake and finishes near the town of Jasper. Other popular day hikes include the Opal Hills and Bald Hills loops. Winter activities include cross-country skiing and snowboarding.