Intermediate = Blue from what I remember. You could always jump into one of the groups running blacks... some might be doing the harder blues/easier blacks but you'll have to ask once the leaders are chosen I guess.

Intermediate Trails - Intermediate trails offer more of a challenge for slightly modified vehicles. Trails will be rockier, may have more off camber situations and may include rocky creek crossings. Bone stock vehicles can handle most of these trails, but without skid plates and rock sliders, both undercarriage damage and rocker panel damage should be expected. The threat of damage on these trails is minimal, but should not be unexpected. Careless or unattentive driving will result in body damage. Harder Green trails and easier Blue Trails at Rausch Creek would be taken in this group.