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Hill NameLocationDist.Avg.MaxGainBRENTACOL
North Modus Rd.Connecticut0.8 KM9.4%14.8%75.2151
North RoadConnecticut1.5 KM7.1%9.7%103.9132
North Scituate Reservoir Hill (Rt 14)Rhode Island0.9 KM5.6%15%47.974
Northfield MountainMassachusetts3.2 KM6.9%18.6%223.1376
NW Brynwood Ln.Oregon0.4 KM20.7%24.8%91.5375
NY Co Road 64 (Shushun)New York1.4 KM3.7%6%52.435
Oak Hill Fire TowerNew Hampshire1 KM15.4%22.6%147.5508
Oak Hill RoadNew Hampshire0.9 KM6.2%9.1%56.570
Oak Ridge RoadNew Hampshire2.3 KM9.4%17%214.9520
Observation DriveCalifornia1 KM14.5%24.9%138.3521
Oglethorpe Mtn RoadGeorgia0.9 KM13.2%25.1%123.5394
OkemoVermont6.2 KM10.5%20%650.71447
Old Mountain RoadNew York0.7 KM14.1%16.7%91.9208
Old Mountain TrailRhode Island1 KM5.1%11%48.872
Old North RoadConnecticut1.3 KM10.2%17.4%128.1268
Old Oxford RoadRhode Island0.8 KM6.4%16%50.3112
Old Priest GradeCalifornia3.3 KM13.6%21.4%451.81387
Old River RoadRhode Island1.2 KM5.1%9.7%62.881
Onion Valley RoadCalifornia20.6 KM7.8%12.5%16003135
Orient St.Massachusetts0.7 KM6.2%12.3%42.177