Umm... I'll do my best to describe the rest of the D17 tracks...
US 51 MX (Wapella, IL) - beginner friendly, mostly flat turns, pretty long/wide, some off camber turns, 3 medium safe triples, cool step-up hill jump, a few table top jumps, 2 small whoops sections, long downhill grassy start, a few lines to the track, okay for passing, dirt/clay mix
LTM (Casey, IL) - kinda similar to Byron, many small elevation changes, mostly natural terrain jumps (many fly-aways, small table tops, the signature downhill triple, cool uphill whoop section, small double-double right after start, camel-hump jump, 2 other small whoop sections), mostly clay, groomed nice for races, lots of off camber and flat and 180 degree turns, wide start gate and first turn, small woods section, runs backwards once in a while, hard to pass on
Sunset Ridge (Walnut, IL) - sand/dirt mix, wide-open/long/wide outdoor style track through rolling hills, safe table top type jumps, wide start and first turn, awesome dirt, berms in most corners, multi-lined
Planet X-Treme (Mason, IL) - long track through rolling hills, nice dirt with loamy corners, berms in some corners, some off camber turns, tight whoop section and long rolling whoop section, some smaller/medium man-made doubles and table tops along with natural fly-aways, long start, pretty wide and lots of room to pass
Tri City MX (Coal Valley, IL) - Lots of elevation changes, track obstacles/direction changes constantly, lots of beginner friendly man-made doubles, step-ups, step-downs, and table tops, easy whoop section, some berms and some flat turns, long start, 2 big hill climbs, dirt/clay mix, wide enough to pass
Pleasure Riders (Cayuga, IN) - natural terrain, dirt/clay/sand/loam mix, smaller man-made doubles, fly-away jumps, small 4 whoop section, one hill climb, some berms and some flat turns, smaller start, enough room to pass in sections
South Fork (Taylorville, IL) - wide open and long outdoor style, dirt/clay/sand corners, few man-made jumps, some natural fly-away jumps, short start, mostly flat corners with a few berms, little elevation changes
Galesburg M/C (Galesburg, IL) - similar to Cayuga, dirt/clay/loam mix, small and medium man-made doubles and table tops, some smaller elevation changes, one (two?) hill climb(s), berms in most turns, big finish line double, wide enough to pass in sections, short start