Job

Some number of heroes has to sit at a site for some number of days. It's a thing that can be completed, and then there may be further steps.

Heroes with higher Tenacity get work done more quickly.

Bridge

If a river is impassable the party can build a bridge over it. Click on the river itself to begin the job. The more party members assigned to this job, the quicker it is. Approx 120 hero-days; the specific formula is

speed_factor = (((10×Speed)+(10×Health))+Charisma)/150

for the first worker and 70% benefit from helpers.