Note: These are inside the Den behind the Elder. Track Harvestables does not work on these. The locations vary.
Prepare a Juicy Fish Roll at the Cooking Pot at ( 1095, -295, 3378 ) /waypoint 1095.04, -295.19, 3377.81 as an offering to show your respect to the elders. You can find all three ingredients in the pools that are behind the elder. The bunch of fungus is near the pool.
Return to the elder and give him the fish roll, then speak with him further.
Gather paper for the elder from the roll of Blank Parchment, on the table at ( 1110, -293, 3378 ) /waypoint 1110.48, -292.63, 3377.90
Give the paper to him so he can draw you a map to the dwarven mines.