end at San Carlos (179 steps, first three pics).
Around to Santa Rosa to ascend a long (187 steps) unnamed stairway that comes out at Spencer. Pix 4 through 11.
Spencer curves up and around (watch for cars, hikers, as there are no sidewalks) until it hits Monte Mar and the freeway where 45 steps climb up from Spencer.
If you're seeking a trail into the GGNRA from up here, don't bother crossing the over-the-freeway bridge (pic 12) to Wolfback Ridge Road as there are no trails here into the park for hikers. At the gated road is a sign-with-map (pic 13) directing walkers and bicyclists to access the Morning Sun Trail a bit further on.
Back across the bridge to the short dirt trail (Cloud View Road dead-ends here) and down the long stairway (204 steps, unnamed) to Prospect (pics 14 through 17). Continued past the top of Cable Roadway this time to descend via Cooper Lane from Spencer and Sausalito to San Carlos (120 steps, pix 18, 19, 20).
Passing other favorites on the way back down: Sausalito Way, West Ct. (pic 21), Second St. (a double stairway with a center garden, pics 22, 23), and the unnamed beauty down to Bridgeway from Josephine and North (121 or so steps, pix 24, 25), all mentioned in earlier posts but always a pleasure to revisit. Last one: Short stairway/walk descending from Bulkley.