One of the first and urgent products needed was building supplies, food and other consumables. Food supplies could be bought and shipped from local Pacific ports to San Francisco, Sacramento, etc. Soon ships were going to and from Oregon, Hawaii, Mexico, Valparaíso Chile, etc. to get food and building supplies that could be shipped back to San Francisco. Building supplies, including complete houses, bricks, etc. were shipped from many East Coast ports as well as Britain, etc.--these shipments were seldom time sensitive as to value. Fairly quickly sawmills were operating in Northern California and Oregon to provide lumber and other wood products. San Francisco shipping boomed and wharves and piers had to be developed to handle the onslaught of cargo--"Long Wharf" was probably the most prominent. Farmers, laborers, business men, prospective miners, gamblers, 'entertainers' and prostitutes, etc. from around the world flocked to San Francisco.