If you are talking about getting on HWY 40 at I-70 then you will be going up and over Berthoud Pass. From I-70 for the first 10 miles or so you will going up hill though it is relatively straight and the hill is not steep. Once you get to the turnoff for Jones Pass at the first hairpin the steepness gets greater and the turns more frequent but it is definitely doable. Typical mountain pass nothing extraordinary about Berthoud Pass. Slow going up and slow going down. Good road, on the way up mostly 3 lane the uphill each way having 2 lanes. Once down you will hit Winter Park, Fraser, Tabernash, Granby and the road across Middle Park is fairly flat with no twisty curveys. Once you hit HWY 34 and start heading to Grand lake the road gets a bit narrower but still plenty fine you will be going up hill at that point and the turns while not bad at all are more frequent
