"Holy Lake" is inconsistent with the three occurrences in the text, which are all spelled "Holey Lake"; same in chapter sub-header.
3.

Added "a" missing in original in "Isle a la Crosse".
4.

Symbol for seconds in original misprinted (56',); corrected to quotation mark (56").
5.

Original used comma instead of decimal point; corrected to "39.5 deg.".
6.

Original had "were"; corrected to "where".
7.