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Before Lewis met up with Clark, he began the expedition on August 30, 1803 in Pittsburgh PA. Lt. William Clark would offer to join Lewis on the expedition weeks later on October 13, 1803 at Camp Dubois (in present-day Indiana). From there, they sailed down the Ohio River towards St. Louis. In spring 1805, they continued to the headwaters of the Missouri River, struggled across the Continental Divide, and headed west along the Salmon, Snake, and Columbia Rivers to the Pacific. They landed at the mouth of the Columbia River, Astoria, Oregon. The expedition then ended on September 23, 1806 upon their return to St. Louis from Oregon.

If you believe that the expedition began in Pittsburgh, then it took 2 years and 25 days.

If you believe that the expedition began when Clark joined then it took 1 year 11 months and 11 days.

If you don't believe me that the expedition began in Pittsburgh and NOT St. Louis, then follow the related link to the Louis and Clark Journals' first entry. As we all know, the common American history textbook likes to smudge the details.

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Before Lewis met up with Clark, he began the expedition on August 30, 1803 in Pittsburgh PA. Lt. William Clark would offer to join Lewis on the expedition weeks later on October 13, 1803 at Camp Dubois (in present-day Indiana). From there, they sailed down the Ohio River towards St. Louis. In spring 1805, they continued to the headwaters of the Missouri River, struggled across the Continental Divide, and headed west along the Salmon, Snake, and Columbia Rivers to the Pacific. They landed at the mouth of the Columbia River, Astoria, Oregon. The expedition then ended on September 23, 1806 upon their return to St. Louis from Oregon.

If you believe that the expedition began in Pittsburgh, then it took 2 years and 25 days.

If you believe that the expedition began when Clark joined then it took 1 year 11 months and 11 days.

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14y ago
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Before Lewis met up with Clark, he began the expedition on August 30, 1803 in Pittsburgh PA. Lt. William Clark would offer to join Lewis on the expedition weeks later on October 13, 1803 at Camp Dubois (in present-day Indiana). From there, they sailed down the Ohio River towards St. Louis.

In spring 1805, they continued to the headwaters of the Missouri River, struggled across the Continental Divide, and headed west along the Salmon, Snake, and Columbia Rivers to the Pacific. They landed at the mouth of the Columbia River, Astoria, Oregon. In total they had traveled 7,689 miles (13,532,640 yards; 40,597,920 feet). The expedition then ended on September 23, 1806 upon their return to St. Louis from Oregon.

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14y ago
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The Lewis and Clark expedition took about three years from 1803 to 1806.

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13y ago
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2 years

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15y ago
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Q: How long did it take Louis and Clark to finish their expedition?
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How long did the expedition of Louis and clark take?

Before Lewis met up with Clark, he began the expedition on August 30, 1803 in Pittsburgh PA. Lt. William Clark would offer to join Lewis on the expedition weeks later on October 13, 1803 at Camp Dubois (in present-day Indiana). From there, they sailed down the Ohio River towards St. Louis. In spring 1805, they continued to the headwaters of the Missouri River, struggled across the Continental Divide, and headed west along the Salmon, Snake, and Columbia Rivers to the Pacific. They landed at the mouth of the Columbia River, Astoria, Oregon. The expedition then ended on September 23, 1806 upon their return to St. Louis from Oregon. If you believe that the expedition began in Pittsburgh, then it took 2 years and 25 days. If you believe that the expedition began when Clark joined then it took 1 year 11 months and 11 days.


How long did the Lewis and Clark expedition last?

Before Lewis met up with Clark, he began the expedition on August 30, 1803 in Pittsburgh PA. Lt. William Clark would offer to join Lewis on the expedition weeks later on October 13, 1803 at Camp Dubois (in present-day Indiana). From there, they sailed down the Ohio River towards St. Louis. In spring 1805, they continued to the headwaters of the Missouri River, struggled across the Continental Divide, and headed west along the Salmon, Snake, and Columbia Rivers to the Pacific. They landed at the mouth of the Columbia River, Astoria, Oregon. The expedition then ended on September 23, 1806 upon their return to St. Louis from Oregon. If you believe that the expedition began in Pittsburgh, then it took 2 years and 25 days. If you believe that the expedition began when Clark joined then it took 1 year 11 months and 11 days.


How long did the expedition took Lewis and clark?

Before Lewis met up with Clark, he began the expedition on August 30, 1803 in Pittsburgh PA. Lt. William Clark would offer to join Lewis on the expedition weeks later on October 13, 1803 at Camp Dubois (in present-day Indiana). From there, they sailed down the Ohio River towards St. Louis. In spring 1805, they continued to the headwaters of the Missouri River, struggled across the Continental Divide, and headed west along the Salmon, Snake, and Columbia Rivers to the Pacific. They landed at the mouth of the Columbia River, Astoria, Oregon. The expedition then ended on September 23, 1806 upon their return to St. Louis from Oregon. If you believe that the expedition began in Pittsburgh, then it took 2 years and 25 days. If you believe that the expedition began when Clark joined then it took 1 year 11 months and 11 days.


How long did it take for Lewis and Clark to explore the Louisiana territory?

Before Lewis met up with Clark, he began the expedition on August 30, 1803 in Pittsburgh PA. Lt. William Clark would offer to join Lewis on the expedition weeks later on October 13, 1803 at Camp Dubois (in present-day Indiana). In spring 1805, they continued to the headwaters of the Missouri River, struggled across the Continental Divide, and headed west along the Salmon, Snake, and Columbia Rivers to the Pacific. The expedition then ended on September 23, 1806 upon their return to St. Louis from Oregon. So the expedition took about 3 years.


How long was the Lewis and Clark Expedition?

The Lewis (Meriwether Lewis;29) and Clark (William Clark;33) expedition took exactly 2 years, 4 months, and 9 days. Sacajawea was with them 2 years of the trip. They thought it would only take till the fall (they started in march), but they didn't realize how big the land was