mortgages...?

Land Loans/mortgages...?
We would like to purchase land in Carbon County Pa. We would like to just mortgage the land but we are having trouble finding companies that do land loans. Can anyone recommend a Company which does do land loans? We would like to build o house on this land within the next two years but we would like to do the work ourselves. Where do i start ?? I first need to get a land loan or mortgage. And there are so many confusing terms and issues such as : Construction loans , Land Loans, Construction loan to mortgage...Where do we begin? any help would be appreciated. Thanks in advance!