There's a large parking lot right at the top of Kenosha Pass on 285. You'll ride the Colorado Trail west or on the right side if you're headed south on 285. It starts off with a tough climb that makes almost everyone gasp for air while mumbling 'Wow, I'm feeling the altitude!' because you are above 10,000'.
Stay on the Colorado Trail and you'll come to the backside of that pass. You'll see where 285 drops back down to the huge Como valley. You'll pass through sections of aspens, some more descents and rolling terrain, then you'll finally dump down to a dirt road.
Cross the road, head over a big bridge, ride up about 200 yards and you'll see a sign that says Colorado Trail up and to the left. That begins a climb up to Georgia Pass that is typically about 45 mins. - 1 hr. This section is challenging as the first 3-4 miles are rocky and somewhat technical.
About 2.5 miles up you can take a break at what we is called 'Lunch Rocks' where there is a big rock outcropping that gives you some nice views. After lunch, keep heading up and you'll soon be above tree line. From here, it's a quick dash to the summit at Georgia Pass.