"Nice free campsite/rest area about a half hour from Saskatoon."
This could be a very nice little spot if they'd only cut the grass, which is very high everywhere. Other than that it's a pretty area to camp, as long as you're fully self contained. There are no amenities, although there is a sewer dump at the entrance. It's just off highway 16 but you don't hear much traffic noise as there is an abundance of...
A rest area off highway 16. Over 15 sites, many big enough for big rigs. Wooded with grassy areas to park. A dump station, picnic tables, trash buckets. Very little signage... We were the only ones here on a Tuesday night in June. One can park in the back and minimize the road noise, of which there was very little overnight.
"Free Dump located right on TransCanada Highway between Winnipeg and Regina"
Located just outside the town of Moosonim on the south side of the TransCanada highway with access from both directions. Dump station is freely accessible with no lock and no sign requesting payment. Located adjacent to the Tim Hortons. Overnight truck parking also at this location on dirt surface - it was quite dusty when we were there.