As to less crowded conditions, from the 2017 LO Unit report (Section 14):
"October remained the most intensively fished month on the Salmon River accounting for 361,464 angler hours in 2017, and 55% of the total estimated fall effort (Table 2). The September 2017 effort estimate was the highest for that month amongst recent surveys at 227,934 estimated hours, well above the next highest
value of 148,389 in 2011 (Table 2). The first week in October had the highest weekly estimate of any week in the surveys completed since 2005, with an estimated 152,009 angler hours (Table 2).
The morning car count conducted on 7 October 2017 yielded 1,398 vehicles at the access locations. Each year the effort increases during September with a peak in either the first or second week in October. By the fourth week in October the effort drops substantially as spawning activities diminish. The trend in fishing effort
over time for the Salmon River appears similar to that observed in the open lake boat fishery (Lantry and Eckert 2018), with a peak in the late 1980s and early 1990s (Table 3). Observed declines from peak effort were of similar magnitude (approximately 50%) for both the tributary and open lake fisheries. However,
Salmon River angler effort returned to historic levels beginning in 2010. "
If you have a "secret spot" where it is not crowded, keep it under your hat!