A marker for marking a ground surface is disclosed, and includes a shaft having a bottom end and a top end. The shaft includes an insertion portion for insertion into the ground. The insertion portion is located at the bottom end of the shaft. The shaft includes a mast portion for extending above the ground surface when the insertion portion is at least partially inserted into the ground. The shaft includes an engagement portion located between the insertion portion and the mast portion with the insertion portion being located between the engagement portion and the bottom end. The engagement portion is configured to be engaged and pushed to cause insertion of the shaft into the ground.