Merchant explorer Anthony Glass traveled up the __________ River to trade goods with American Indians at a large trade fair in 1808.

Choices: Cimarron, Sabine, or Red

Red?

Yes.

To determine which river Anthony Glass traveled up in 1808 to trade goods with American Indians, we can analyze the given choices: Cimarron, Sabine, and Red.

To start, let's eliminate the possibilities by considering the geographical context and historical time frame. The Sabine River is located between Texas and Louisiana, and while it was indeed an important trade route in the 1800s, it is not typically associated with the trade fair mentioned in the question.

Next, let's consider the Cimarron River. The Cimarron River is primarily located in the central United States, flowing through parts of Oklahoma, Kansas, Colorado, and New Mexico. While it played a role in trade and exploration during the 19th century, it is not widely recognized as a major route for trading with American Indians during that specific time period.

Finally, let's examine the Red River. The Red River is a significant waterway that flows between Texas and Oklahoma, forming the border between the two states for a portion of its course. During the 1800s, the Red River served as a crucial trade route, connecting various indigenous communities throughout the region. Its importance as a hub for trade with American Indians makes it a plausible choice for this question.

Based on this analysis, it is likely that Anthony Glass traveled up the Red River to trade goods with American Indians at a large trade fair in 1808.