One hour/one+ mile (Introductory: North Rueda Canyon - walk north from Tierrasanta Blvd up-a-ways in the canyon, & then back to the starting point:. We gather on Rueda Drive next to Tierrasanta Blvd. (Drive east on Tierrasanta Blvd, past the library & down the hill to Rueda Drive, turn left & park.) The route is relatively flat along the canyon floor. The trail starts as a six foot wide utility gravel road but eventually narrows to a three foot wide trail. This season the vegetation is very diverse & lush.