At the "Szalajka fish pond" stop of the forest railways there stands a monument-like building which is usually mentioned as the "Király" house or the "Mine courtship" house.

The ground floor of this two storey manor house was built at the beginning of the nineteenth century and this was the headquarters of the mining authorities, the so called, mine-court-ship, which inspected the quality of the metal. The places of occurrence were found by Lajos Koncz, innkeeper, in Szarvaskő, Bélapátfalva and the Maria mine in the Horotna valley in 1801 and 1802.The authorities also kept the work of the Keglevich counts' foundries under control.

In the time of marquis Alfonz Károly Pallavicini this building was the office and official quarters of the forest factor Lajos Király, who became the Commissioner of Woods and Forests. He lived here from 1921-1946, that is why it is often called "Király" house.

The top floor of the building was built in the middle of the last century. Nowadays two exhibitions are set in this house, the Mátra and Western Bükk Forestry and Wood-works' trade collection and the Forestry Museum of Szilvásvárad.