I see a lot of these fan like symbols:
...on the Nav Canada Alaska Highway - Fort Nelson to Northway, 1:500,000 VFR Navigation Chart, but they're not anywhere on the map legend.
I presume they're marshland as they look a little similar to symbols I've seen on hiking maps, but I don't like assuming when making flight plans!..
Is there some universal reference somewhere that I don't know about? Are they indicating marshland, or are they something else entirely?