3/9/19 checked the regional snow depth maps & thought I had a shot at this but nope, no cigar! the gravel power line trails were covered w snow that was too deep. even tho the snowmobiles compacted it, it was softening & was un-rideable by bicycle. I doubt even a fat bike would have liked it.
some of the park roads which are not maintained during winter months would have been interesting to ride, but there was no legal parking nearby to access them. I met one woman riding the plowed roads. she seemed quite happy