Each elevation segment is ~ 1/4 mile.
Start(click and drag map; double click to move forward)
Note: Click on “View full route" (top left) which opens the Baldwin-Olinda Rd RideWithGPS page. Hover over the distance line at the spot you would like to begin a sub- segment for this climb. Click your mouse on the start point and drag the vertical graphing line the distance you wish to obtain sub-detail from, then release the mouse at the end point. This will give you the following sub-detail for the selected segment in the “Metrics” window top right of the page: (a) distance, (b) elevation gained and lost, (c) max grade, (d) average grade (e) that segment's climb category – e.g. Cat 1, HC, etc., and (f) FIETS score for the segment.
Hover cursor over segment slices, below, for exact grade of a particular segment.
This climb shares its first 8 miles with the second highest Fiets Index climb in the US (Haleakala). Baldwin becomes Olinda at about 7 miles up the volcano from the start in Paia. At the 8 mile mark, instead of turning right on Hanamu Rd (for the Haleakala climb), we continue straight on Olinda for another 4.4 miles to the end of the road.
The first 8 miles of this climb are mild and scenic - 4.4% average grade (1,888' gained, 3' descended). The last 4.4 miles of the climb are where the challenge begins and why this climb qualifies for the Top 100 - 4.4 miles, 9.1% average grade, 2,123'' ascent and 0' descended (you can see the dramatic change in the VeloViewer at the bottom of this page).
Provisions along the way: Makawao (6 miles from start - market and bakery). The Roadway surface is good the entire route, but traffic is fairly heavy for the first 7 miles although very mild thereafter.
Background photo - U.S. #5 Pikes Peak CO.