I've got no way to track total elevation gain, but my easiest route (based on average speed) to Estes Park has about 2500' of gain in 22.5 miles, to the turnaround point of a 45 miles out and back. It's a steady climb, but not difficult. Ride that 100 times a year and you'd have 250,000. My other routes are all more difficult due to steep hills, but the total elevation gain, might be lower. My average speed on those routes is 1-1.5 mph slower.