Note: My visit and review is from before the Yellowstone River flood. This fishing access site is currently closed due to public safety risks caused by extremely high water levels, endangered and failing infrastructure, flooded and impassible access roads.

Mallard's Rest is a nice small Montana Fishing Access site that allows camping.  Campground sits on the banks of the Yellowstone River.  Campground appears to be a mixture of developed campsites and dispersed camping as some site are clearly marked and have metal fire rings and picnic tables.  Other "sites" might just have a table or nothing at all.  The site has two vault toilets.  This is a pack-in / Pack-out campground.  No water is available so come prepared.  A boat ramp and parking area for boat trailers is available.  This is a popular campground,  my visit in March is the first time that I have noticed this not being over packed with campers.  Cost to camp varies between $5 and $18 depending on your age, if you are a Montana residence or not, and if you have a state fishing license.