I Live in Sebastopol, near Santa Rosa.
Mt St. Helena is a good training hill, 4300 to the top. you can start at the hwy 29 lot for a 5 mile 2000' gain to the top. I was up last week and the vis was great, you can see the Sierra's, Mt. Lassen, sometimes Shasta. If you go at a fast pace it makes a great workout. Bring water the place is dry. The first mile is trail and the last 4 are fire road.
Summit Post has a good write up on it.
It was my daughters first summit a week before she turned 3, under her own power ( I never carried her ) We have lost count of how many times we have been up.
Anyone want to do a moon light dinner on top and a hike down in the moon light?
If you do Tam count me in too.