Does the following passage contain a comma splice error?

About halfway up, he found that it became too difficult to continue up, the path ended.

Yes, the following passage contains a comma splice error.

Yes, the following passage contains a comma splice error. A comma splice occurs when two independent clauses are joined together with only a comma. In this case, the independent clauses are "he found that it became too difficult to continue up" and "the path ended." To fix the comma splice, you can either use a period to create two separate sentences or use a coordinating conjunction (such as "and" or "but") along with a comma to join the clauses. An example fix would be: "About halfway up, he found that it became too difficult to continue up and the path ended."