You are presented here with an enjoyable variety of possible bike loop or linear tours that features rail-trails that connect Ferry County in the USA and Boundary in BC, Canada. The loop and linear rail trail distances are listed in the Map Legend.
Some interesting features to note:
The Kettle River: It is 282 km long starting in Roosevelt Lake in B.C., hits the Trans Canada Trail at Westbridge, dips in Washington USA at Midway, returns to BC in Grand Forks, and south of Christina Lake heads back to Washington to empty in the Columbia River at Kettle Falls. In these tours, the route follows it for 60 km.
Parks, rivers, lakes, bridges, canyons, cascading water, valleys, and monuments, all with their heritage values, provide for a large variety of features. One could spend up to 4 or 5 days exploring the invigorating landscape along these routes. The loops provide for uniquely separate excursions. You are more likely to be in hilly terrain when choosing the roads as part of your journey.
For a more detailed description Ferry County rail trail here and here