Old School RuneScape uses the British convention for floor numbering: Ground floor, first floor, etc.
Map clues are an image of a location the player needs to search to advance along their trail. Maps are found across all clue scroll difficulties. They are rough pictures of a very local area. If the map leads to an X, the player needs to take a spade to the place indicated on the map with the X and dig there. If the map leads to a crate, it must simply be searched. Sometimes, players may find a small pile of crates, or a multitude of them. Search all of them until the next clue or the reward is found. Maps can include landmarks such as buildings, fish to indicate fishing spots, roads, rivers, bridges, and so on.
Digging in the location pointed to by a map clue will never spawn any monsters.
Inside McGrubor's Wood, west of Seer's Village. Fairy ring code ALS. If approaching from outside, squeeze through the broken fence by the northern half of the hut in the center and search the crate south of the house.
Located in West Ardougne, dig inside one of the destroyed buildings. It is in the north-east corner of the housing buildings in the south-west area of West Ardougne. Head due west from the main gate, and you'll get to the buildings.
South of Yanille bank. Behind the house with an anvil.