Jon Searles' photos with the keyword: summit

Here's a closeup of the tracks, with the cog in the middle.

Here's a better look at one of the steam locomotives.

Here's the extreme grade to the summit. I don't actually precisely what it is. Some particularly ambitious people were jogging to the summit alongside the tracks.

The Snowdon Mountain Railway, while only 4.7 miles long, is so steep that it's a cog railway. It's also 2'7.5" narrow-gauge. Built in 1896, it is still partly steam powered. Here you can see both steam and diesel power. The terminal at the bottom of the mountain is at Llanberis, which is also a station on the Llanberis Lake Railway and the Carnarvonshire Railway. The Summit station is integrated into the cafe mentioned earlier.