It sounds like you are talking about Baptist Church Drive which will lead into the north end of Lacomb. I hadn't heard of Salt Lake School House-but I've only lived in the area for about 6 years.
Here's a link to the Linn County Maps:
You can enter into the assessors page and pull up county maps. The map numbers are 11s 1w and Baptist church is section 25. Another link you might be interested in is www.linnhistory.peak.org They list area school houses from the mid 1800's forward. If yours isn't listed there you can add that information. Let me know if you are trying to look up a person, or if it is just a memory lapse on the area's name.