Mongolia is a vast country with a very small road network, little in terms of railway and few airports. To travel around Mongolia is an adventure itself. A traveller can expect to spend many days travelling on bumpy tracks on roads and cross country before reaching their destination.  The most common way of travelling is by jeep, generally speaking the old russian jeeps (called Gaz) they are very fun and look good in Mongolia but the air conditioning generally consists of rolling down the windows while the musical entertainment very much depends on the skills of your driver. 

Should you wish to have a modern Toyota land cruiser and stay in luxury resorts such as the Three Camels Lodge in the Gobi or the Mongolian Resort and Country Club near Ulaanbaatar then the prices per day would start at 300USD all inclusive up to 500USD. It is also possible to hire helicopters to tour around the country but this is a costly way (if exceptional) way of travelling.

Public transport is of course much cheaper but is not advisable. There are small mini busses which travel from Ulaanbaatar to various parts of the country but they only go once full (that means that every inch of available space is taken up by something, even if it is a goat) which means that you can end up waiting in the mini-bus for the entire day for it to fill up. They will drop you in the middle of no-where and once there you will have no indications of when the next bus will depart if at all for Ulaanbaatar. No one working or taking the public transport system in Mongolia will speak English and everything will be written in Cyrillic. While this can be fun, it is also very tiring, exceedingly uncomfortable and extremely unreliable. Only advisable if you are very adventure minded and have plenty of spare time to be stuck amongst the goats of the steppes of Mongolia…