How to get to Liomseter

There is a road all the way to the cabin.

If you come from the south on E6, drive past Lillehammer and take the exit marked "Gausdal". Drive north-westward toward Segalstad Bru and take the left exit to Forset. At Forset, just after the gas station, take to the left and follow the road down the hill. After about 500 m take a right turn following the sign to Fagernes. Keep on this road for about 20 Km, until you arrive at Holsbru. Here, you need to pay a road fee of 90 NOK and then you can continue on the gravel road that takes you all the way to Liomseter. 
Enjoy the scenery :)

You can take a bus from/to Lillehammer - Liomseter Thursdays and Sundays during summer season. You can take a train to Lillehammer from Oslo or Trondheim. 

You can take a train to Lillehammer and then change for a bus that takes you to Forset. From Forset it is about 22 Km to Kittilbu which is the closest DNT cabin (not staffed), or you can arrange in Forset for a fee; book transport with the warden well in advance.
Winter: There is no winter road to Liomseter, but you are only a beautiful ski trip away...

If you come from the south on E6, drive past Lillehammer and take the exit marked "Gausdal".  Drive north-west to Segalstad bru and take the left exit to Forset. When you arrive at Øvre Svatsum take a left exit over the river (just before the Joker grocery store), and follow Revsjøvegen to Synstgardsetra. Keep to your left when you see the waste bins and pass through the toll (80 NOK). There is also a daily fee of 35 NOK for parking at Synsgardsætra. 

You can also take a train or bus to Lillehammer and a bus to Øvre Svatsum. Transport of people and luggage has to be booked in advance. This service is available for a fee. 

From the parking station, there is a 15/17 km staked route to Liomseter (the length of the route depends a bit on the snowmobile tracks that again depends on the access of bridges). The route is well marked with signs. The first 5 km are established ski tracks, the rest is snowmobile tracks. 

There is a possibility to access Liomseter by the summer-road (on skis) as there usually is snowmobile tracks following this route as well. However, this is a longer route (about 22 KM), and the route is not managed by DNT as it is a maintenance route for Gausdal Fjellstyre (so the tracks might be new or old depending on their last trip).