Manuscripts
Pool at spring found by Ervin after climb to the top of the pre-Cambrian above 234 Mile Rapid
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Route climbed by Ervin in 1931 through the Redwall above 234 Mile Rapid
Manuscripts
mssMarston papers V095/0029

Ravine above the spring found by Ervin after his climb from the inner gorge in 1931
Manuscripts
mssMarston papers V095/0027

Escape route through the Redwall climbed by Ervin in 1931 above 234 Mile Rapid
Manuscripts
mssMarston papers V095/0038

Ravine above spring found by Ervin in 1931 after climb from inner gorge
Manuscripts
mssMarston papers P007/0792

Middle part of the climbing route used by Ervin in 1931 to escape the inner gorge above 234 Mile Rapid
Manuscripts
mssMarston papers V095/0056

234 Mile Rapid and the lower part of the climbing route used by Ervin in 1931
Manuscripts
mssMarston papers V095/0055