The most significant factor that delayed construction of the Central Pacific Railroad was the long stretches of desolate landscape, which created numerous logistical challenges. This tough terrain hindered the movement of workers and supplies, affecting overall progress more than conflicts or weather conditions. Other factors like intense heat and supply shortages did matter, but they were secondary to the difficulties posed by the geographical challenges.
;
The most significant factor contributing to delays in the construction of the Central Pacific Railroad was the long stretches of desolate landscape. This challenging terrain hindered progress more than other issues like conflicts and heat. The remote areas often made it difficult to transport necessary supplies, further complicating the construction efforts. ;