While the valley and the pathways are nice right now the trails are in mud season.  With the warm temps all next week it is a good idea to avoid the mishmash of wet snow and mud.  I would recommend any of the pathways or if you are really craving singletrack you may be able to use the Hagen trails early in the mornings if the temps are cold overnight.  Otherwise the only dry dirt is on the Nelson Knoll loop, the Blair Dr. Bike Park, and the singletrack along the S.89 pathway.  Hopefully by next weekend when the winter wildlife closures lift on May 1st there will be some more dry trails to get out and explore.  Until then remember to spread out and give people 6 feet when passing and keep yourselves healthy!