I had a similar question on reading; here's my take:
Scouting Lore could be either military or civil work, and the lore part pertains to all the work that goes into formalizing and monetizing the scouting. Think of the surveyors, scouts, and assayers of the American and Australian frontiers (both military and civilian) who made money exploring, surveying, and mapping territory.
Survival is a necessary skill to live in the wilderness. Scouting lore pertains to drawing up maps, logging claims, preparing reports, etc. In a military context, it's about drawing up military maps, surveying permanent fortifications, etc. Used in downtime, scouting lore represents the hard but tedious work of hauling survey equipment and doing paperwork.